Add againd gdu.1.md because it was removed by error

Signed-off-by: kadogo <kadogo@users.noreply.github.com>

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+---
+date: {{date}}
+section: 1
+title: gdu
+---
+
+# NAME
+
+gdu - Pretty fast disk usage analyzer written in Go
+
+# SYNOPSIS
+
+**gdu \[flags\] \[directory_to_scan\]**
+
+# DESCRIPTION
+
+Pretty fast disk usage analyzer written in Go.
+
+Gdu is intended primarily for SSD disks where it can fully utilize
+parallel processing. However HDDs work as well, but the performance gain
+is not so huge.
+
+# OPTIONS
+
+**-h**, **\--help**\[=false\] help for gdu
+
+**-i**, **\--ignore-dirs**=\[/proc,/dev,/sys,/run\] Absolute paths to
+ignore (separated by comma)
+
+**-I**, **\--ignore-dirs-pattern** Absolute path patterns to
+ignore (separated by comma)
+
+**-X**, **\--ignore-from** Read absolute path patterns to ignore from file
+
+**-l**, **\--log-file**=\"/dev/null\" Path to a logfile
+
+**-m**, **\--max-cores** Set max cores that GDU will use.
+
+**-c**, **\--no-color**\[=false\] Do not use colorized output
+
+**-x**, **\--no-cross**\[=false\] Do not cross filesystem boundaries
+
+**-H**, **\--no-hidden**\[=false\] Ignore hidden directories (beginning with dot)
+
+**-L**, **\--follow-symlinks**\[=false\] Follow symlinks for files, i.e. show the
+size of the file to which symlink points to (symlinks to directories are not followed)
+
+**-n**, **\--non-interactive**\[=false\] Do not run in interactive mode
+
+**-p**, **\--no-progress**\[=false\] Do not show progress in
+non-interactive mode
+
+**-s**, **\--summarize**\[=false\] Show only a total in non-interactive mode
+
+**-d**, **\--show-disks**\[=false\] Show all mounted disks
+
+**-a**, **\--show-apparent-size**\[=false\] Show apparent size
+
+**\--si**\[=false\] Show sizes with decimal SI prefixes (kB, MB, GB) instead of binary prefixes (KiB, MiB, GiB)
+
+**\--no-prefix**\[=false\] Show sizes as raw numbers without any prefixes (SI or binary) in non-interactive mode
+
+**\--no-mouse**\[=false\] Do not use mouse
+
+**-f**, **\----input-file** Import analysis from JSON file. If the file is \"-\", read from standard input.
+
+**-o**, **\----output-file** Export all info into file as JSON. If the file is \"-\", write to standard output.
+
+**\--config-file**=\"$HOME/.gdu.yaml\"             Read config from file
+
+**\--write-config**\[=false\] Write current configuration to file (default is $HOME/.gdu.yaml)
+
+**-g**, **\--const-gc**\[=false\] Enable memory garbage collection during analysis with constant level set by GOGC
+
+**\--enable-profiling**\[=false\] Enable collection of profiling data and provide it on http://localhost:6060/debug/pprof/
+
+**-v**, **\--version**\[=false\] Print version
+
+# FILE FLAGS
+
+Files and directories may be prefixed by a one-character
+flag with following meaning:
+
+**!**
+
+:   An error occurred while reading this directory.
+
+**.**
+
+:   An error occurred while reading a subdirectory, size may be not correct.
+
+**\@**
+
+:  File is symlink or socket.
+
+**H**
+
+:  Same file was already counted (hard link).
+
+**e**
+
+:  Directory is empty.