From 3147420735aa26b96ed5589ccbe818fda2af4eed Mon Sep 17 00:00:00 2001
From: rabite <rabite@posteo.de>
Date: Wed, 22 Jan 2020 02:49:42 +0100
Subject: fix hang when substituting too many files at once

---
 Cargo.lock           | 317 ++++++++++++++++++++++++++-------------------------
 Cargo.toml           |   2 +-
 src/file_browser.rs  |   4 +-
 src/proclist.rs      | 166 ++++++++++-----------------
 src/quick_actions.rs |   2 +-
 5 files changed, 229 insertions(+), 262 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index b862004..aafb4f8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -18,7 +18,7 @@ name = "aho-corasick"
 version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -69,14 +69,15 @@ dependencies = [
  "failure 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure_derive 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rayon 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "atty"
-version = "0.2.13"
+version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "hermit-abi 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -86,9 +87,14 @@ name = "autocfg"
 version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "autocfg"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "backtrace"
-version = "0.3.40"
+version = "0.3.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "backtrace-sys 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -102,7 +108,7 @@ name = "backtrace-sys"
 version = "0.1.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -114,6 +120,11 @@ dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "base64"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "bitflags"
 version = "1.2.1"
@@ -125,17 +136,17 @@ version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "arrayvec 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "constant_time_eq 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "constant_time_eq 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "blake2b_simd"
-version = "0.5.9"
+version = "0.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "arrayref 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "arrayvec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "constant_time_eq 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "constant_time_eq 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -150,7 +161,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cc"
-version = "1.0.48"
+version = "1.0.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -163,8 +174,8 @@ name = "chrono"
 version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -174,7 +185,7 @@ version = "2.33.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -182,14 +193,6 @@ dependencies = [
  "vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "cloudabi"
-version = "0.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "color_quant"
 version = "1.0.1"
@@ -197,7 +200,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "constant_time_eq"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -224,19 +227,11 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-queue"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "crossbeam-utils"
-version = "0.6.6"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -274,7 +269,7 @@ version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_users 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_users 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -298,7 +293,7 @@ name = "failure"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure_derive 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -307,9 +302,9 @@ name = "failure_derive"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -370,6 +365,16 @@ name = "fuchsia-zircon-sys"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "getrandom"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "gif"
 version = "0.10.3"
@@ -423,8 +428,8 @@ dependencies = [
  "gstreamer-sys 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "muldiv 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-rational 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "muldiv 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-rational 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -564,7 +569,7 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.5"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -592,13 +597,13 @@ dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "lscolors 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime_guess 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "notify 4.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "osstrtools 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "notify 4.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "osstrtools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "parse-ansi 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "pathbuftools 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rayon 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rust-ini 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "signal-notify 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -607,7 +612,7 @@ dependencies = [
  "strum 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "strum_macros 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "systemstat 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "termion 1.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termion 1.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "tree_magic 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "users 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -622,9 +627,9 @@ dependencies = [
  "gif 0.10.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "jpeg-decoder 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "lzw 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-iter 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-rational 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-iter 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-rational 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "png 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "scoped_threadpool 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "tiff 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -640,7 +645,7 @@ dependencies = [
 
 [[package]]
 name = "inotify"
-version = "0.6.1"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -664,13 +669,21 @@ dependencies = [
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "jpeg-decoder"
 version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rayon 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -751,7 +764,7 @@ dependencies = [
 
 [[package]]
 name = "memchr"
-version = "2.2.1"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -764,7 +777,7 @@ dependencies = [
 
 [[package]]
 name = "mime"
-version = "0.3.14"
+version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -772,7 +785,7 @@ name = "mime_guess"
 version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "mime 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 2.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -818,7 +831,7 @@ dependencies = [
 
 [[package]]
 name = "muldiv"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -851,19 +864,18 @@ dependencies = [
 
 [[package]]
 name = "notify"
-version = "4.0.14"
+version = "4.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "filetime 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "fsevent 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "fsevent-sys 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "inotify 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "inotify 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-extras 2.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "walkdir 2.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -879,47 +891,47 @@ dependencies = [
 
 [[package]]
 name = "num-integer"
-version = "0.1.41"
+version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-iter"
-version = "0.1.39"
+version = "0.1.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-rational"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-traits"
-version = "0.2.10"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num_cpus"
-version = "1.11.1"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "hermit-abi 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hermit-abi 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -935,8 +947,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "osstrtools"
-version = "0.1.9"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "owning_ref"
@@ -972,7 +987,7 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1005,7 +1020,7 @@ dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "deflate 0.7.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "inflate 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-iter 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-iter 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1018,7 +1033,7 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.6"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1037,7 +1052,7 @@ name = "quote"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1065,39 +1080,26 @@ name = "rand_core"
 version = "0.4.2"
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 [[package]]
@@ -1134,13 +1136,12 @@ dependencies = [
 
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 [[package]]
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 [[package]]
@@ -1173,17 +1174,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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 [[package]]
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 [[package]]
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@@ -1335,9 +1337,9 @@ name = "synstructure"
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- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1357,7 +1359,7 @@ dependencies = [
 
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@@ -1393,7 +1395,7 @@ dependencies = [
 
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 [[package]]
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 [[package]]
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+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+
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@@ -1519,7 +1526,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
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@@ -1587,6 +1594,7 @@ dependencies = [
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@@ -1602,12 +1610,13 @@ dependencies = [
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 "checksum mio-extras 2.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "52403fe290012ce777c4626790c8951324a2b9e3316b3143779c72b029742f19"
 "checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
-"checksum muldiv 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "451a9a05d2a32c566c897835e0ea95cf79ed2fdfe957924045a1721a36c9980f"
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 "checksum nodrop 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "72ef4a56884ca558e5ddb05a1d1e7e1bfd9a68d9ed024c21704cc98872dae1bb"
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 "checksum nom 3.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05aec50c70fd288702bcd93284a8444607f3292dbdf2a30de5ea5dcdbe72287b"
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-"checksum num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)" = "b85e541ef8255f6cf42bbfe4ef361305c6c135d10919ecc26126c4e5ae94bc09"
-"checksum num-iter 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "76bd5272412d173d6bf9afdf98db8612bbabc9a7a830b7bfc9c188911716132e"
-"checksum num-rational 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f2885278d5fe2adc2f75ced642d52d879bffaceb5a2e0b1d4309ffdfb239b454"
-"checksum num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "d4c81ffc11c212fa327657cb19dd85eb7419e163b5b076bede2bdb5c974c07e4"
-"checksum num_cpus 1.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "76dac5ed2a876980778b8b85f75a71b6cbf0db0b1232ee12f826bccb00d09d72"
+"checksum num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "3f6ea62e9d81a77cd3ee9a2a5b9b609447857f3d358704331e4ef39eb247fcba"
+"checksum num-iter 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)" = "dfb0800a0291891dd9f4fe7bd9c19384f98f7fbe0cd0f39a2c6b88b9868bbc00"
+"checksum num-rational 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "da4dc79f9e6c81bef96148c8f6b8e72ad4541caa4a24373e900a36da07de03a3"
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+"checksum num_cpus 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "46203554f085ff89c235cd12f7075f3233af9b11ed7c9e16dfe2560d03313ce6"
 "checksum numtoa 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b8f8bdf33df195859076e54ab11ee78a1b208382d3a26ec40d142ffc1ecc49ef"
 "checksum ordermap 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "a86ed3f5f244b372d6b1a00b72ef7f8876d0bc6a78a4c9985c53614041512063"
-"checksum osstrtools 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "cdac1d82b6d6b98c40fef111c6dedb35c427702a297e828d1812d5629155baf0"
+"checksum osstrtools 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7acb1f1b0af8b54107dc46ca4579bae0df3663e8501849201af732c3c0bd0d94"
 "checksum owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "cdf84f41639e037b484f93433aa3897863b561ed65c6e59c7073d7c561710f37"
 "checksum parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "149d8f5b97f3c1133e3cfcd8886449959e856b557ff281e292b733d7c69e005e"
 "checksum parking_lot_core 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "4db1a8ccf734a7bce794cc19b3df06ed87ab2f3907036b693c68f56b4d4537fa"
@@ -1652,29 +1661,28 @@ dependencies = [
 "checksum pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)" = "05da548ad6865900e60eaba7f589cc0783590a92e940c26953ff81ddbab2d677"
 "checksum png 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)" = "63daf481fdd0defa2d1d2be15c674fbfa1b0fd71882c303a91f9a79b3252c359"
 "checksum proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)" = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
-"checksum proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "9c9e470a8dc4aeae2dee2f335e8f533e2d4b347e1434e5671afc49b054592f27"
+"checksum proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3acb317c6ff86a4e579dfa00fc5e6cca91ecbb4e7eb2df0468805b674eb88548"
 "checksum quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)" = "6ce23b6b870e8f94f81fb0a363d65d86675884b34a09043c81e5562f11c1f8e1"
 "checksum quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "053a8c8bcc71fcce321828dc897a98ab9760bef03a4fc36693c231e5b3216cfe"
 "checksum rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "552840b97013b1a26992c11eac34bdd778e464601a4c2054b5f0bff7c6761293"
 "checksum rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6fdeb83b075e8266dcc8762c22776f6877a63111121f5f8c7411e5be7eed4b"
 "checksum rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9c33a3c44ca05fa6f1807d8e6743f3824e8509beca625669633be0acbdf509dc"
-"checksum rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7b75f676a1e053fc562eafbb47838d67c84801e38fc1ba459e8f180deabd5071"
-"checksum rayon 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "43739f8831493b276363637423d3622d4bd6394ab6f0a9c4a552e208aeb7fddd"
-"checksum rayon-core 1.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f8bf17de6f23b05473c437eb958b9c850bfc8af0961fe17b4cc92d5a627b4791"
+"checksum rayon 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "db6ce3297f9c85e16621bb8cca38a06779ffc31bb8184e1be4bed2be4678a098"
+"checksum rayon-core 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "08a89b46efaf957e52b18062fb2f4660f8b8a4dde1807ca002690868ef2c85a9"
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 "checksum redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)" = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
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-"checksum redox_users 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4ecedbca3bf205f8d8f5c2b44d83cd0690e39ee84b951ed649e9f1841132b66d"
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 "checksum regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)" = "4fd4ace6a8cf7860714a2c2280d6c1f7e6a413486c13298bbc86fd3da019402f"
-"checksum regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dc220bd33bdce8f093101afe22a037b8eb0e5af33592e6a9caafff0d4cb81cbd"
+"checksum regex 1.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "b5508c1941e4e7cb19965abef075d35a9a8b5cdf0846f30b4050e9b55dc55e87"
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-"checksum regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)" = "11a7e20d1cce64ef2fed88b66d347f88bd9babb82845b2b858f3edbf59a4f716"
-"checksum rust-argon2 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4ca4eaef519b494d1f2848fc602d18816fed808a981aedf4f1f00ceb7c9d32cf"
+"checksum regex-syntax 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)" = "e734e891f5b408a29efbf8309e656876276f49ab6a6ac208600b4419bd893d90"
+"checksum rust-argon2 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2bc8af4bda8e1ff4932523b94d3dd20ee30a87232323eda55903ffd71d2fb017"
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 "checksum rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
 "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
-"checksum same-file 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "585e8ddcedc187886a30fa705c47985c3fa88d06624095856b36ca0b82ff4421"
+"checksum same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
 "checksum scoped_threadpool 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "1d51f5df5af43ab3f1360b429fa5e0152ac5ce8c0bd6485cae490332e96846a8"
 "checksum scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b42e15e59b18a828bbf5c58ea01debb36b9b096346de35d941dcb89009f24a0d"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
@@ -1690,14 +1698,14 @@ dependencies = [
 "checksum strum 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e5d1c33039533f051704951680f1adfd468fd37ac46816ded0d9ee068e60f05f"
 "checksum strum_macros 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "47cd23f5c7dee395a00fa20135e2ec0fffcdfa151c56182966d7a3261343432e"
 "checksum syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)" = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
-"checksum syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)" = "dff0acdb207ae2fe6d5976617f887eb1e35a2ba52c13c7234c790960cdad9238"
+"checksum syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)" = "af6f3550d8dff9ef7dc34d384ac6f107e5d31c8f57d9f28e0081503f547ac8f5"
 "checksum synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)" = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
 "checksum systemstat 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "2078da8d09c6202bffd5e075946e65bfad5ce2cfa161edb15c5f014a8440adee"
-"checksum termion 1.5.4 (registry+https://github.com/rust-lang/crates.io-index)" = "818ef3700c2a7b447dca1a1dd28341fe635e6ee103c806c636bb9c929991b2cd"
+"checksum termion 1.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "c22cec9d8978d906be5ac94bceb5a010d885c626c4c8855721a4dbd20e3ac905"
 "checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
 "checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
 "checksum thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"
-"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
+"checksum thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
 "checksum tiff 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1e4834f28a0330cb9f3f2c87d2649dca723cb33802e2bdcf18da32759fbec7ce"
 "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
 "checksum tree_magic 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8ed063ec7b632ba8173200d7e818db4ba01564b6c085c1a7d1041b93b55b0e02"
@@ -1710,11 +1718,12 @@ dependencies = [
 "checksum utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a1ca13c08c41c9c3e04224ed9ff80461d97e121589ff27c753a16cb10830ae0f"
 "checksum vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
 "checksum version_check 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "078775d0255232fb988e6fccf26ddc9d1ac274299aaedcedce21c6f72cc533ce"
-"checksum walkdir 2.2.9 (registry+https://github.com/rust-lang/crates.io-index)" = "9658c94fa8b940eab2250bd5a457f9c48b748420d71293b165c8cdbe2f55f71e"
+"checksum walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "777182bc735b6424e1a57516d35ed72cb8019d85c8c9bf536dccb3445c1a2f7d"
+"checksum wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
 "checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
 "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-"checksum winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7168bab6e1daee33b4557efd0e95d5ca70a03706d39fa5f3fe7a236f584b03c9"
+"checksum winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4ccfbf554c6ad11084fb7517daca16cfdcaccbdadba4fc336f032a8b12c2ad80"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
diff --git a/Cargo.toml b/Cargo.toml
index fe0898e..648daef 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,7 +33,7 @@ signal-notify = "0.1.3"
 systemstat = "0.1.5"
 mime_guess = "2.0"
 async_value = "0.2.5"
-osstrtools = "0.1.9"
+osstrtools = "0.2"
 pathbuftools = "0.1"
 clap = "2.33"
 mime = "0.3.13"
diff --git a/src/file_browser.rs b/src/file_browser.rs
index 43394ac..ddeea91 100644
--- a/src/file_browser.rs
+++ b/src/file_browser.rs
@@ -1005,7 +1005,7 @@ impl FileBrowser {
                     let cwd = &self.cwd.path;
 
                     let path_string = OsString::from_vec(cmd_result.stdout);
-                    let path_string = path_string.trim_end_newlines();
+                    let path_string = path_string.trim_end("\n");
                     let path = PathBuf::from(path_string);
                     let path = if path.is_absolute() {
                         path
@@ -1043,7 +1043,7 @@ impl FileBrowser {
         let selected_file = self.selected_file().ok();
         let selected_files = self.selected_files().ok();
 
-        let cmd = self.core.minibuffer("exec")?.to_string() + " ";
+        let cmd = self.core.minibuffer("exec")?.to_string();
 
         let cwd_files = selected_files.map(|selected_files| {
             if selected_files.len() == 0 {
diff --git a/src/proclist.rs b/src/proclist.rs
index b6926ca..8f4ca09 100644
--- a/src/proclist.rs
+++ b/src/proclist.rs
@@ -3,12 +3,12 @@ use std::sync::mpsc::Sender;
 use std::process::{Child, Command};
 use std::os::unix::process::{CommandExt, ExitStatusExt};
 use std::io::{BufRead, BufReader};
-use std::ffi::{OsString, OsStr};
-use std::os::unix::ffi::{OsStringExt, OsStrExt};
+use std::ffi::OsString;
+use std::os::unix::ffi::OsStrExt;
 
 use termion::event::Key;
 use unicode_width::UnicodeWidthStr;
-use osstrtools::OsStrTools;
+use osstrtools::{OsStringTools, OsStrTools, OsStrConcat};
 use async_value::Stale;
 
 use crate::listview::{Listable, ListView};
@@ -46,21 +46,27 @@ pub struct Cmd {
 
 impl Cmd {
     fn process(&mut self) -> Vec<OsString> {
-        let cmd = self.cmd.clone().split(&OsString::from(" "));
+        // Split the string now, so inserted files aren't screwed up by substitutions
+        let cmd = self.cmd.split(" ")
+            .into_iter()
+            .map(|s| s.to_os_string())
+            .collect();
+
         let cmd = self.substitute_cwd_files(cmd);
         let cmd = self.substitute_tab_files(cmd);
         let cmd = self.substitute_tab_paths(cmd);
+
         cmd
     }
 
-    fn substitute_cwd_files(&mut self, cmd: Vec<OsString>) -> Vec<OsString> {
-        if self.cwd_files.is_none() { return cmd; }
+    fn perform_substitution(&self,
+                            cmd: Vec<OsString>,
+                            pat: &str,
+                            files: Vec<File>) -> Vec<OsString> {
+        if !self.cmd.contains(pat) { return cmd; }
 
-        let cwd_pat = OsString::from("$s");
-        let cwd_files =  self.cwd_files
-            .take()
-            .unwrap() // There always is a file, even if just place holder
-            .iter()
+        let files =  files
+            .into_iter()
             .map(|file|
                  // strip out the cwd part to make path shorter
                  file.strip_prefix(&self.cwd)
@@ -69,55 +75,46 @@ impl Cmd {
                  .escape_single_quote())
             .collect::<Vec<OsString>>();
 
-        cmd.iter()
-            .map(|part| part.splice_quoted_single(&cwd_pat,
-                                                  cwd_files.clone()))
-            .flatten().collect()
+        cmd.into_iter()
+            .map(|part| {
+                // If this part isn't the pattern, just return it as is
+                match part != pat {
+                    true => part,
+                    false => part.splice(pat,
+                                         &files)
+                        .assemble_with_sep_and_wrap(" ", "'")
+                }
+            })
+            .collect()
+    }
+
+    fn substitute_cwd_files(&mut self, cmd: Vec<OsString>) -> Vec<OsString> {
+        if self.cwd_files.is_none() { return cmd; }
+        let files = self.cwd_files.take().unwrap();
+        self.perform_substitution(cmd, "$s", files)
     }
 
     fn substitute_tab_files(&mut self, cmd: Vec<OsString>) -> Vec<OsString> {
         if self.tab_files.is_none() { return cmd; }
-
         let tab_files = self.tab_files.take().unwrap();
 
         tab_files.into_iter()
             .enumerate()
             .fold(cmd, |cmd, (i, tab_files)| {
-                let tab_files_pat = OsString::from(format!("${}s", i));
-                let tab_file_paths = tab_files.iter()
-                    .map(|file|
-                         // strip out the cwd part to make path shorter
-                         file.strip_prefix(&self.cwd)
-                         .into_os_string()
-                         // escape single quotes so file names with them work
-                         .escape_single_quote())
-                    .collect::<Vec<OsString>>();
-
-                cmd.iter().map(|part| {
-                    part.splice_quoted_single(&tab_files_pat,
-                                              tab_file_paths.clone())
-                }).flatten().collect()
+                let tab_files_pat = String::from(format!("${}s", i));
+                self.perform_substitution(cmd, &tab_files_pat, tab_files)
             })
     }
 
     fn substitute_tab_paths(&mut self, cmd: Vec<OsString>) -> Vec<OsString> {
         if self.tab_paths.is_none() { return cmd; }
-
         let tab_paths = self.tab_paths.take().unwrap();
 
         tab_paths.into_iter()
             .enumerate()
             .fold(cmd, |cmd, (i, tab_path)| {
-                let tab_path_pat = OsString::from(format!("${}", i));
-                let tab_path = tab_path.strip_prefix(&self.cwd)
-                    .into_os_string()
-                    // escape single quotes so file names with them work
-                    .escape_single_quote();
-
-                cmd.iter().map(|part| {
-                    part.splice_quoted_single(&tab_path_pat,
-                                              vec![tab_path.clone()])
-                }).flatten().collect()
+                let tab_path_pat = String::from(format!("${}", i));
+                self.perform_substitution(cmd, &tab_path_pat, vec![tab_path])
             })
     }
 }
@@ -218,34 +215,29 @@ impl ListView<Vec<Process>> {
     fn run_proc_subshell(&mut self, mut cmd: Cmd) -> HResult<()> {
         let shell = std::env::var("SHELL").unwrap_or("sh".into());
         let home = crate::paths::home_path()?.into_os_string();
-        let fg = cmd.cmd.as_bytes().ends_with(b"! ");
+        let fg = cmd.cmd.as_bytes().ends_with(b"!");
 
         if fg {
-            // remove that last !
-            let real_len = cmd.cmd.as_bytes().len() - 2;
-            cmd.cmd = OsString::from_vec(cmd.cmd.as_bytes()[0..real_len].to_vec());
-            // workaround until split is fixed
-            cmd.cmd.push(" ");
+            // Remove that last !
+            cmd.cmd = cmd.cmd.trim_end("!");
         }
 
-        let cmd_args = cmd.process();
+        let cmd_args = cmd.process().concat(" ");
 
-        let short = OsStr::from_bytes("~".as_bytes());
-        let short_cmd = cmd_args
-            .concat()
-            .replace(&home, &short)
-            .replace(OsStr::from_bytes("'\''".as_bytes()),
-                     OsStr::from_bytes("'".as_bytes()))
-            .replace(OsStr::from_bytes("\"".as_bytes()),
-                     OsStr::from_bytes("".as_bytes()))
+        // Nicer for display
+        let short = "~";
+        let short_cmd = cmd_args.clone()
+            .replace(&home, short)
+            .replace("'\''", "'")
+            .replace("\"", "")
             .to_string_lossy()
             .to_string();
 
-        let shell_args = cmd_args.concat();
+        let shell_args = cmd_args;
         let shell_args = vec![OsString::from("-c"), shell_args.clone()];
 
         cmd.cmd = OsString::from(shell.clone());
-        cmd.args = Some(shell_args.clone());
+        cmd.args = Some(shell_args);
         cmd.short_cmd = Some(short_cmd);
 
         if !fg {
@@ -279,8 +271,19 @@ impl ListView<Vec<Process>> {
                 .stdout(std::process::Stdio::piped())
                 // Without this stderr would be separate which is no good for procview
                 .pre_exec(||  { libc::dup2(1, 2); Ok(()) })
-                .spawn()?
+                .spawn()
         };
+
+        let handle = match handle {
+            Ok(handle) => handle,
+            Err(e) => {
+                let msg = format!("Error! Failed to start process: {}",
+                                  e);
+                self.core.show_status(&msg)?;
+                return Err(e)?;
+            }
+        };
+
         let mut proc = Process {
             cmd: short_cmd,
             handle: Arc::new(Mutex::new(handle)),
@@ -672,51 +675,6 @@ impl Widget for ProcView {
 }
 
 
-trait ConcatOsString {
-    fn concat(&self) -> OsString;
-    fn concat_quoted(&self) -> OsString;
-}
-
-impl ConcatOsString for Vec<OsString> {
-    fn concat(&self) -> OsString {
-        let len = self.len();
-        self.iter().enumerate().fold(OsString::new(), |string, (i, part)| {
-            let mut string = string.into_vec();
-            let mut space = " ".as_bytes().to_vec();
-            let mut part = part.clone().into_vec();
-
-            string.append(&mut part);
-
-            if i != len {
-                string.append(&mut space);
-            }
-
-            OsString::from_vec(string)
-        })
-    }
-
-    fn concat_quoted(&self) -> OsString {
-        let len = self.len();
-        self.iter().enumerate().fold(OsString::new(), |string, (i, part)| {
-            let mut string = string.into_vec();
-            let mut space = " ".as_bytes().to_vec();
-            let mut quote = "\"".as_bytes().to_vec();
-            let mut part = part.clone().into_vec();
-
-
-            string.append(&mut quote.clone());
-            string.append(&mut part);
-            string.append(&mut quote);
-
-
-            if i+1 != len {
-                string.append(&mut space);
-            }
-
-            OsString::from_vec(string)
-        })
-    }
-}
 
 use crate::keybind::*;
 
diff --git a/src/quick_actions.rs b/src/quick_actions.rs
index 654bd67..58eaff8 100644
--- a/src/quick_actions.rs
+++ b/src/quick_actions.rs
@@ -378,7 +378,7 @@ impl QuickAction {
 
         let cwd = files.get(0)?.parent_as_file()?;
 
-        let files = files.iter()
+        let files: Vec<OsString> = files.iter()
             .map(|f| OsString::from(&f.path))
             .collect();
 
-- 
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