bash : update autocompletes.

.README.md

@@ -300,10 +300,29 @@ Those are self-written scripts to create archives. They are basically compressed
 
 Command|Description
 ---|---
-`archive [DIRS]`|Create archive with the best compression (slow). If no args given, archives all files in current directory as separate archives.
+`archive [FILES]`|Create archive with the best compression (slow). If no args given, archives all files in current directory as separate archives.
-`archive_fast [DIRS]`|Like normal `archive` but with minimal compression.
+`archive_fast [FILES]`|Like normal `archive` but with minimal compression.
-`archive_check [DIRS]`|Check specified archives or all archives in current directory.
+`archive_check [ARCHIVES]`|Check specified archives or all archives in current directory.
-`unarchive [DIRS]`|Check specified or all archives and extract if they are correct.
+`archive_name [ARCHIVES] [NAME]`|Rename specified archive ro specified name or simplify name for specified archive or simplify names for all archives.
+`unarchive [ARCHIVES]`|Check specified or all archives and extract if they are correct.
+
+## Autocomplete.
+
+Thos are functions that provide tab-completions.
+
+```bash
+_foo()
+{
+  _autocomplete "{foo,bar}"
+}
+complete -F _foo foo
+```
+
+Command|Description
+---|---
+`_autocomplete <ARGS>`|Provide completion based on provided arguments separated by spaces.
+`_autocomplete_first <ARGS>`|Same as `_autocomplete` but works only once for first argument.
+`_autocomplete_nested`|Provides nested completions, just like `sudo` does.
 
 ## Battery.
 
@@ -333,11 +352,12 @@ Command|Description
 
 Command|Description
 ---|---
-`x [FILE]`|Make file executable.
+`x <FILE>`|Make file executable.
 
 ## Color.
 
 ### How to use.
+
 Most of the time you want to use it with `echo`. To make `echo` respect colors, you need to use `-e` flag like that:
 ```bash
 export color_default="\033[0m"
@@ -347,6 +367,7 @@ echo -e "${color_red}hello world!${color_default}" # will print "hello world!" i
 Don't forget to use `color_default` at the end, or your whole terminal will be red.
 
 ### List of colors.
+
 Please note that colors depend on Terminal Emulator and may vary based on its settings.
 
 |Color|Code|
@@ -378,10 +399,10 @@ Command|Description
 
 Command|Description
 ---|---
-`cp [FROM] [TO]`|Copy files or dirs. Actually, it is an alias for `rsync -ahP`.
+`cp <FROM> <TO>`|Copy files or dirs. Actually, it is an alias for `rsync -ahP`. Multiple `<FROM>` could be specified.
-`cp_merge [FROM] [TO]`|Mirror directories. Same as `rsync --delete`.
+`cp_merge <FROM> <TO>`|Mirror directories. Same as `rsync --delete`.
-`cp_link`|Copy directory by recursively creating hardlinks and directories.
+`cp_link <FROM> <TO>`|Copy directory by recursively creating hardlinks and directories.
-`bcp`|Default `cp` command.
+`bcp <FROM> <TO>`|Default `cp` command.
 
 ## Date.
 
@@ -402,16 +423,16 @@ Command|Description
 Command|Description
 ---|---
 `df`|Show free disk space (only physical media).
-`du [DIR]`|Show disk usage.
+`du [FILES]`|Show disk usage.
 
 ## Docker.
 
 Command|Description
 ---|---
-`docker_volumes [CONTAINER]`|Show volumes of a specified container.
+`docker_volumes <CONTAINER>`|Show volumes of a specified container.
 `docker_health`|Show containers that exited with an error code.
 `docker_prune`|Heavy cleanup to free up space.
-`docker_ip [CONTAINER]`|Show IP of a specified container.
+`docker_ip <CONTAINER>`|Show IP of a specified container.
 `docker_update`|Update all Docker images.
 `dc`|Short for `docker compose`.
 `dcu [SERVICE]`|Start a compose service.
@@ -440,13 +461,13 @@ Variable|Description
 
 Command|Description
 ---|---
-`ffmpeg_mux_audio [SOUND] [RESULT]`|Mux external audio into one container with video (replaces original audio). Run inside dir with original video. [SOUND] names should be the same for each video.
+`ffmpeg_mux_audio <SOUND> <RESULT>`|Mux external audio into one container with video (replaces original audio). Run inside dir with original video. <SOUND> names should be the same for each video.
 
 ## Files.
 
 Command|Description
 ---|---
-`o [FILE]`|Open file with default GUI app.
+`o <FILE>`|Open file with default GUI app.
 
 ## Fix.
 
@@ -454,7 +475,7 @@ Contains simple fixes for warious issues.
 
 Command|Description
 ---|---
-`fix_ethernet_speed [SPEED]`|Specify ethernet speed if it failed to set correct speed automatically. [SPEED] can be 10/100/1000 etc.
+`fix_ethernet_speed <SPEED>`|Specify ethernet speed if it failed to set correct speed automatically. [SPEED] can be 10/100/1000 etc.
 `fix_files_sftp`|Make Nautilus forget incorrect password for SFTP connection.
 
 ## Git.
@@ -503,22 +524,22 @@ Command|Description
 `name [FILES]`|Replace all non-alphanumeric characters in file with underscores.
 `name_hash [FILES]`|Replace all file names with hashes, keep extension.
 `name_hash_check [FILES]`|Check all file hashes.
-`name_series [SEASON]`|Rename files to Jellyfin's show format: `Episode S01E01.mkv`.
+`name_series <SEASON>`|Rename files to Jellyfin's show format: `Episode S01E01.mkv`.
-`name_manga [SEASON]`|Rename files to Kavita's manga format: `Name Vol.1 Ch.01.cbr`.
+`name_manga <SEASON>`|Rename files to Kavita's manga format: `Name Vol.1 Ch.01.cbr`.
-`name_ext [EXTENSION] [FILES]`|Change file extensions.
+`name_ext <EXTENSION> [FILES]`|Change file extensions.
 
 ## Ncdu.
 
 Command|Description
 ---|---
-`ncdu`|Show recursive disk usage. Only on the same filesystem.
+`ncdu [DIR]`|Show recursive disk usage. Only on the same filesystem.
 
 ## Notify.
 
 Command|Description
 ---|---
-`notify`|Send notification.
+`notify <MESSAGE>`|Send notification.
-`notify_silent`|Send silent notification.
+`notify_silent <MESSAGE>`|Send silent notification.
 
 ## Own.
 
@@ -537,12 +558,12 @@ Command|Description
 
 Command|Description
 ---|---
-`ps [PROGRAM]`|Show process info for matching [PROGRAM] name.
+`ps <PROGRAM>`|Show process info for matching [PROGRAM] name.
 
 ## Recursive.
 Command|Description
 ---|---
-`recursive [COMMAND]`|Cd into every directory recursively and run specified command in each dir.
+`recursive <COMMAND>`|Cd into every directory recursively and run specified command in each dir.
 
 ## Shopt.
 
@@ -568,12 +589,12 @@ Command|Description
 
 Command|Description
 ---|---
-`ta [NAME]`|Attach to session by name.
+`ta [NAME]`|Attach to session by name. Default is `main`.
 `td`|Detach from session.
 `tl`|List all sessions.
 `tr`|Rename session.
 `tn`|Name window.
-`tk [NAME]`|Kill session.
+`tk [NAME]`|Kill session. Default is `main`.
 `tka`|Kill all sessions.
 
 ## To-do.
@@ -586,16 +607,16 @@ Command|Description
 
 Command|Description
 ---|---
-`tb [NAME]`|Attach to box by name.
+`tb [NAME]`|Attach to box by name. Default is `main`.
-`tbk [NAME]`|Kill box by name.
+`tbk [NAME]`|Kill box by name. Default is `main`.
-`tb_rpmfusion [NAME]`|Install RPMFusion package to box by name.
+`tb_rpmfusion [NAME]`|Install RPMFusion package to box by name. Default is `main`.
 `tbl`|List all boxes.
 
 ## Try.
 
 Command|Description
 ---|---
-`try`|Repeat the command every 2 seconds until it exits with success.
+`try <COMMAND>`|Repeat the command every 2 seconds until it exits with success.
 
 ## Umask.
 
@@ -605,8 +626,8 @@ By default, umask is `077` which means group and others have no access when file
 
 Command|Description
 ---|---
-`vdl [LINK]`|Download video/playlist.
+`vdl <LINK>`|Download video/playlist.
-`vdl_file [FILE]`|Download all links from a file.
+`vdl_file <FILE>`|Download all links from a file.
 `vdl_update`|Update playlist that was downloaded with `vdl` before.
 `vdl_update_all`|Recursive `vdl_update`.
 
@@ -620,11 +641,11 @@ Command|Description
 
 Command|Description
 ---|---
-`wallpaper [FILE]`|Set specified file as a wallpaper.
+`wallpaper <FILE>`|Set specified file as a wallpaper.
 
 ## Watch.
 
 Command|Description
 ---|---
-`w [COMMAND]`|Alias for `watch`.
+`w <COMMAND>`|Alias for `watch`.
-`ww [COMMAND]`|Alias for `watch` that updates every 0.1 seconds.
+`ww <COMMAND>`|Alias for `watch` that updates every 0.1 seconds.

document/linux/config/bash/bashrc.sh

@@ -1,8 +1,8 @@
 #!/bin/bash
 
 #home="/var/home/voronind"
-home="$HOME"
+home="${HOME}"
-module="$home/document/linux/config/bash/module"
+module="${home}/document/linux/config/bash/module/*.sh"
 
 # src default
 if [[ -f /etc/bashrc ]]; then
@@ -10,8 +10,8 @@ if [[ -f /etc/bashrc ]]; then
 fi
 
 # src custom
-for file in $(ls "$module"); do
+for file in ${module}; do
-  source "$module/$file"
+  source "${file}"
 done
 
 # alias to reload

document/linux/config/bash/module/README.md

@@ -0,0 +1,7 @@
+# Help page for scripting.
+
+# Conventions.
+
+## Bash manpage arguments.
+
+`[OPTIONAL] <REQUIRED> {DEFAULT} (INFO)`

document/linux/config/bash/module/archive.sh

@@ -1,91 +1,97 @@
 # archive file with maximum compression and checksum.
+# usage: archive [FILES]
 archive()
 {
-  local target="$@" # target file(s).
+  local targets=("${@}") # target file(s).
-  local count=0     # processed count.
+  local count=0          # processed count.
-  local total=$#    # total to process.
+  local total=${#}       # total to process.
 
   # set dafult value to target all supported archives.
-  if [[ "${target}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
-    target="*"
+    targets=(*)
-    total=$(ls | wc -l)
+    total=${#targets[@]}
   fi
 
-  # iterate each file.
+  # iterate each target.
-  for file in ${target}; do
+  for target in "${targets[@]}"; do
     # increment counter.
     ((count++))
 
     # status info.
-    local status="[${count}/${total}] ${file}"
+    local status="[${count}/${total}] ${target}"
     echo "${status}"
 
     # create archive.
-    tar -c "${file}" | pv -s $(du -sb "${file}" | awk '{print $1}') | xz -9e > "${file%/*}".tar.xz
+    tar -c "${target}" | pv -s $(du -sb "${target}" | awk '{print $1}') | xz -9e > "${target%/*}".tar.xz
     
-    # append hash to file name.
+    # append hash to target name.
-    mv "${file%/*}".tar.xz "${file%/*}"_$(sha1sum "${file%/*}".tar.xz | cut -d\  -f1).tar.xz
+    mv "${target%/*}".tar.xz "${target%/*}"_$(sha1sum "${target%/*}".tar.xz | cut -d\  -f1).tar.xz
   done
 }
 
 # archive file with minimal compression and checksum.
+# usage: archive_fast [FILES]
 archive_fast()
 {
-  local target="$@" # target file(s).
+  local targets=("${@}") # target file(s).
-  local count=0     # processed count.
+  local count=0          # processed count.
-  local total=$#    # total to process.
+  local total=${#}       # total to process.
 
   # set dafult value to target all supported archives.
-  if [[ "${target}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
-    target="*"
+    targets=(*)
-    total=$(ls | wc -l)
+    total=${#targets[@]}
   fi
 
-  # iterate each file.
+  # iterate each target.
-  for file in ${target}; do
+  for target in "${targets[@]}"; do
     # increment counter.
     ((count++))
 
     # status info.
-    local status="[${count}/${total}] ${file}"
+    local status="[${count}/${total}] ${target}"
     echo "${status}"
 
     # create archive.
-    tar -c "${file}" | pv -s $(du -sb "${file}" | awk '{print $1}') | gzip -1 > "${file%/*}".tar.gz
+    tar -c "${target}" | pv -s $(du -sb "${target}" | awk '{print $1}') | gzip -1 > "${target%/*}".tar.gz
     
-    # append hash to file name.
+    # append hash to target name.
-    mv "${file%/*}".tar.gz "${file%/*}"_$(sha1sum "${file%/*}".tar.gz | cut -d\  -f1).tar.gz
+    mv "${target%/*}".tar.gz "${target%/*}"_$(sha1sum "${target%/*}".tar.gz | cut -d\  -f1).tar.gz
   done
 }
 
 # check archive hashes.
+# usage: archive_check [FILES]
 archive_check()
 {
-  local target="$@" # target file(s).
+  local targets=("${@}") # target file(s).
-  local count=0     # processed count.
+  local total=${#}       # total to process.
-  local total=$#    # total to process.
+  local count=0          # processed count.
-  local failed=0    # total failed checks.
+  local failed=0         # total failed checks.
 
   # set dafult value to target all supported archives.
-  if [[ "${target}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
-    target="*_*.tar.*"
+    targets=(*_*.tar.*)
-    total=$(ls ${target} | wc -l)
+    total=${#targets[@]}
   fi
 
-  # iterate each file.
+  # iterate each target.
-  for file in ${target}; do
+  for target in "${targets[@]}"; do
+    # process only files.
+    [[ -f "${target}" ]] || continue
+
     # increment counter.
     ((count++))
 
     # status info.
-    local status="[${count}/${total}] ${file}"
+    local status="[${count}/${total}] ${target}"
 
     # extract hash from name.
-    local saved="${file##*_}"
+    local saved="${target##*_}"
     saved="${saved%%.*}"
 
     # calculate actual hash.
-    local actual="$(pv ${file} | sha1sum | cut -d\  -f1)"
+    local actual=$(pv "${target}" | sha1sum | cut -d\  -f1)
 
     # compare hashes, show error on mismatch.
     if [[ "${actual}" = "${saved}" ]]; then
@@ -107,78 +113,102 @@ archive_check()
 }
 
 # extract previously created archive with checksum validation.
+# usage: unarchive [FILES]
 unarchive()
 {
-  local target="$@" # target file(s).
+  local targets=("${@}") # target file(s).
-  local count=0     # processed count.
+  local count=0          # processed count.
-  local total=$#    # total to process.
+  local total=${#}       # total to process.
   
   # set dafult value to target all supported archives.
-  if [[ "${target}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
-    target="*_*.tar.*"
+    targets=(*_*.tar.*)
-    total=$(ls ${target} | wc -l)
+    total=${#targets[@]}
   fi
 
-  # iterate each file.
+  # iterate each target.
-  for file in ${target}; do
+  for target in "${targets[@]}"; do
     # increment counter.
     ((count++))
 
     # status info.
-    local status="[${count}/${total}] ${file}"
+    local status="[${count}/${total}] ${target}"
 
     # extract hash from name.
-    local saved="${file##*_}"
+    local saved="${target##*_}"
     saved="${saved%%.*}"
     
     # calculate actual hash.
-    local actual="$(sha1sum ${file} | cut -d\  -f1)"
+    local actual=$(sha1sum "${target}" | cut -d\  -f1)
 
     # extract if hash matched or show error if not.
     if [[ "${saved}" = "${actual}" ]]; then
       echo "${status}: OK."
-      tar -xf "${file}"
+      tar -xf "${target}"
     else
       echo "${status}: failed."
     fi
   done
 }
 
-# rename archive.
+# rename archive. if no name specified, it simplifies archive's name.
-# usage: archive_rename [ARCHIVE] [NAME]
+# usage: archive_name [ARCHIVE] [NAME]
-archive_rename()
+archive_name()
 {
-  # get params.
+  local targets="${1}" # target archive(s).
-  local target="${1}"
+  local name="${2}"    # new name.
-  local name="${2}"
+  local total=1        # total targets to process.
+  local count=0        # processed targets counter.
 
-  # check params.
+  # set dafult value to target all supported archives.
-  if [[ "${target}" = "" || "${name}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
-    echo "usage: archive_rename [ARCHIVE] [NAME]"
+    targets=(*_*.tar.*)
-    return 1
+    total=${#targets[@]}
   fi
 
-  # remove old name.
+  # iterate each target.
-  local data="${target##*_}"
+  for target in "${targets[@]}"; do
-  local new_name="${name}_${data}"
+    # only work with targets.
+    [[ -f "${target}" ]] || continue
 
-  # prepare status.
+    # iterate counter.
-  local status="${target} -> ${new_name}"
+    ((count++))
     
-  # rename.
+    # simplify name by default.
-  mv -- "${target}" "${new_name}" && echo "${status}" || echo -e "${color_red}${status}: error.${color_default}"
+    if [[ "${name}" = "" || ${count} -gt 1 ]]; then
+      name="${target%_*}"
+      name="$(parse_alnum ${name})"
+    fi
+
+    # remove old name.
+    local data="${target##*_}"
+    local new_name="${name}_${data}"
+
+    # prepare status.
+    local status="[${count}/${total}] ${target} -> ${new_name}"
+
+    # check for the same name.
+    if [[ "${target}" = "${new_name}" ]]; then
+      echo -e "${color_green}${status}: no change.${color_default}"
+      continue
+    fi
+
+    # check for existing target.
+    if [[ -f "${new_name}" ]]; then
+      echo -e "${color_red}${status}: already exists.${color_default}"
+      return 1
+    fi
+
+    # rename.
+    mv -- "${target}" "${new_name}" && echo "${status}" || echo -e "${color_red}${status}: error.${color_default}"
+  done
 }
 
 # export everything, primarily for use with parallel..
-export -f archive archive_fast archive_check unarchive
+export -f archive archive_fast archive_check unarchive archive_name
 
 # autocomplete.
-_archive_list()
+_archive_name()
-{
-  _autocomplete "$(ls *_*.tar.* 2> /dev/null)"
-}
-
-_archive_rename()
 {
   COMPREPLY=()
 
@@ -187,7 +217,7 @@ _archive_rename()
   local command="${COMP_WORDS[0]}"
 
   if [[ "${prev}" = "${command}" ]]; then
-    COMPREPLY=( $(compgen -W "$(ls -a)" -- ${cur}) )
+    COMPREPLY=( $(compgen -W "$(ls *_*.tar.*)" -- ${cur}) )
     return 0
   else
     local name="${prev%_*}"
@@ -196,5 +226,5 @@ _archive_rename()
   fi
 }
 
-complete -o plusdirs -F _archive_list archive_check unarchive
+complete -f -X "!*_*.tar.*" archive_check unarchive
-complete -F _archive_rename archive_rename
+complete -F _archive_name archive_name

document/linux/config/bash/module/autocomplete.sh

@@ -1,9 +1,9 @@
 # bash autocomplete.
-# usage: _foo () { _autocomplete "{foo,bar}" } ; complete -F _foo foo
+# usage: _foo() { _autocomplete "{foo,bar}" } ; complete -F _foo foo
 # there are also options like -o nospace. see man for more info.
 _autocomplete()
 {
-  local commands="$@"
+  local commands="${@}"
   
   COMPREPLY=()
 
@@ -18,7 +18,7 @@ _autocomplete()
 # autocomplete only first argument.
 _autocomplete_first()
 {
-  local commands="$@"
+  local commands="${@}"
   
   COMPREPLY=()
 
@@ -32,26 +32,6 @@ _autocomplete_first()
   fi
 }
 
-# autocomplete only first argument. the rest is ls output.
-_autocomplete_first_ls()
-{
-  local commands="$@"
-  
-  COMPREPLY=()
-
-  local cur="${COMP_WORDS[COMP_CWORD]}"
-  local prev="${COMP_WORDS[COMP_CWORD-1]}"
-  local command="${COMP_WORDS[0]}"
-
-  if [[ "${prev}" = "${command}" ]]; then
-    COMPREPLY=( $(compgen -W "${commands}" -- ${cur}) )
-    return 0
-  else
-    COMPREPLY=( $(compgen -W "$(ls -a)" -- ${cur}) )
-    return 0
-  fi
-}
-
 # autocomplete nested program.
 _autocomplete_nested()
 {
@@ -62,7 +42,7 @@ _autocomplete_nested()
     if [[ ${words[i]} != -* ]]; then
       local PATH=$PATH:/sbin:/usr/sbin:/usr/local/sbin
       local root_command=${words[i]}
-      _command_offset $i
+      _command_offset ${i}
       return
     fi
   done

document/linux/config/bash/module/checksum.sh

@@ -1,4 +1,6 @@
 # create or check checksums for all files in current directory.
+# usage: checksum <ACTION>
+# actions: "new", "check".
 checksum()
 {
   local action="$1"          # what to do with checksum.

document/linux/config/bash/module/copypaste.sh

@@ -1,2 +1,2 @@
-alias copy="wl-copy"
+alias copy="wl-copy"   # copy stdin to system clipboard.
-alias paste="wl-paste"
+alias paste="wl-paste" # paste system clipboard to stdout.

document/linux/config/bash/module/dconf.sh

@@ -1,2 +1,2 @@
-alias dconf_load="dconf load / < $HOME/document/linux/config/gnome.dconf"
+alias dconf_load="dconf load / < $HOME/document/linux/config/gnome.dconf"  # load gnome settings.
-alias dconf_save="dconf dump / > $HOME/document/linux/config/_gnome.dconf"
+alias dconf_save="dconf dump / > $HOME/document/linux/config/_gnome.dconf" # dump gnome settings to a file.

document/linux/config/bash/module/docker.sh

@@ -8,6 +8,7 @@ alias docker_health="docker ps -a | grep Exited"
 alias docker_prune="docker system prune --volumes --all"
 
 # short aliases.
+# usage: dc [SERVICE]
 alias dc="docker compose"
 alias dcu="docker compose up -d"
 alias dcd="docker compose down"
@@ -16,24 +17,31 @@ alias dcl="docker compose logs -f"
 alias dcr="docker compose restart"
 alias dcs="docker compose stop"
 
+# down & up specified services.
+# usage: dcdu [SERVICES]
 dcdu()
 {
   dcd "${@}"
   dcu "${@}"
 }
 
+# pull & up specified services.
+# usage: dcpu [SERVICES]
 dcpu()
 {
   dcp "${@}"
   dcu "${@}"
 }
 
+# up & attach to logs for specified services.
+# usage: dcul [SERVICES]
 dcul()
 {
   dcu "${@}" && dcl "${@}"
 }
 
 # find out container's IP address.
+# usage: docker_up <CONTAINER NAME>
 docker_ip()
 {
   docker inspect -f '\''{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}'\' $1 | sed "s/^.//" | sed "s/.$//"

document/linux/config/bash/module/ffmpeg.sh

@@ -1,8 +1,9 @@
-# mux audio into containers. tmp usage for anime downloads.
+# mux audio into containers. file names in sound and current dirrectories must match. tmp usage for anime downloads.
+# usage: ffmpeg_mux_audio <SOUND> <OUTPUT DIR>
 ffmpeg_mux_audio()
 {
   if [[ "$1" = "" ]]; then
-    echo "usage: $ sound/ result/"
+    echo "usage: ffmpeg_mux_audio <SOUND> <OUTPUT DIR>"
     return
   fi
 

document/linux/config/bash/module/file.sh

@@ -1,2 +1,3 @@
 # open file/dir in GUI.
+# usage: o <FILE>
 alias o="xdg-open"

document/linux/config/bash/module/fix.sh

@@ -1,15 +1,17 @@
 # fix when ethernet mistakenly detects 100 Mb instead of 1000 Mb.
+# usage: fix_ethernet_speed <DEVICE> <SPEED>
+# SPEED is one of 10/100/1000 etc.
 fix_ethernet_speed()
 {
-  local device="$1"
+  local device="${1}"
-  local speed="$2"
+  local speed="${2}"
 
-  if [[ "$device" = "" || "$speed" = "" ]]; then
+  if [[ "${device}" = "" || "${speed}" = "" ]]; then
-    echo "usage: [device] [speed]"
+    echo "usage: fix_ethernet_speed <DEVICE> <SPEED>"
     return 1
   fi
 
-  ethtool -s "$device" speed "$speed"
+  ethtool -s "${device}" speed "${speed}"
 }
 
 # fix files wrong sftp password.

document/linux/config/bash/module/git.sh

@@ -23,14 +23,22 @@ git_tag()
   git log | grep commit -m1 | sed -e "s/.*\ //g" | cut -c 1-11;
 }
 
-# alias to preview diff while adding.
+# alias to preview diff while adding. adds current dir by default.
+# usage: ga [FILES]
 ga()
 {
-  git diff $@
+  local target=${@}
-  git add $@
+  
+  if [[ "${target}" = "" ]]; then
+    target="."
+  fi
+
+  git diff ${target}
+  git add ${target}
 }
 
-# rebase by X commits or from root.
+# rebase by X commits or from root. when COUNT is 0 - rebase from root. default is 2.
+# usage: gr [COMMIT COUNT]
 gr()
 {
   local base="${1}"
@@ -88,7 +96,7 @@ fi
 
 _gu()
 {
-  _autocomplete account@voronind.com dd.voronin@fsight.ru
+  _autocomplete_first account@voronind.com dd.voronin@fsight.ru
 }
 
 complete -F _gu gu

document/linux/config/bash/module/ls.sh

@@ -15,19 +15,20 @@ ll()
 }
 
 # list files in tree structure.
+# usage: lll [DEPTH] [FILES]
 lll()
 {
-  local depth="$1"
+  local depth="${1}"
-  local paths="${@:2}"
+  local target="${@:2}"
 
-  if [[ "$paths" = "" ]]; then
+  if [[ "${target}" = "" ]]; then
-    paths="."
+    target="."
   fi
 
-  if [[ "$depth" = "" ]]; then
+  if [[ "${depth}" = "" ]]; then
-    tree -a -- "$paths"
+    tree -a -- "${target}"
   else
-    tree -a -L "$depth" -- "$paths"
+    tree -a -L "${depth}" -- "${target}"
   fi
 }
 

document/linux/config/bash/module/name.sh

@@ -2,49 +2,41 @@
 # usage: name [FILES]
 name()
 {
-  local files="$@"
+  local targets=("${@}") # target file(s).
-  local count=0
+  local count=0          # processed count.
-  local total=$#
+  local total=${#}       # total to process.
-  local IFS=$'\n'
 
-  # all files except hidden by default.
+  # all targets except hidden by default.
-  if [[ "${files}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
-    files="[^.]*"
+    targets=([^.]*)
-    total=$(ls | wc -l)
+    total=${#targets[@]}
   fi
 
   # process.
-  for file in ${files}; do
+  for target in "${targets[@]}"; do
-    # increment count.
+    # increment counter.
     ((count++))
 
-    # extract new name.
+    # parse new name.
-    local new_name=$(echo "${file}" | \
+    local new_name=$(parse_simplify "${target}")
-      sed -e "s/ /_/g" \
-          -e "s/[^[:alnum:]\._-]//g" \
-          -e "s/_\+/_/g" -e "s/\.\+/\./g" -e "s/-\+/-/g" \
-          -e "s/_-/_/g" -e "s/-_/_/g" -e "s/\.-/\./g" -e "s/-\./\./g" -e "s/\._/\./g" -e "s/_\./\./g" \
-          -e "s/_\+/_/g" \
-          -e "s/^_//" -e "s/_$//"
-    )
 
     # status line.
-    local status="[${count}/${total}] ${file} -> ${new_name}"
+    local status="[${count}/${total}] ${target} -> ${new_name}"
 
     # check if same name.
-    if [[ "${file}" = "${new_name}" ]]; then
+    if [[ "${target}" = "${new_name}" ]]; then
       echo -e "${color_green}${status}: no change.${color_default}"
       continue
     fi
 
-    # check if file name already exists.
+    # check if target name already exists.
     if [[ -f "${new_name}" ]]; then
       echo -e "${color_red}${status}: already exists!${color_default}"
       return 1
     fi
 
-    # rename file.
+    # rename target.
-    mv -- "${file}" "${new_name}" &> /dev/null
+    mv -- "${target}" "${new_name}" &> /dev/null
 
     # show change.
     echo "${status}"
@@ -55,51 +47,50 @@ name()
 # usage: name_hash [FILES]
 name_hash()
 {
-  local files="$@"
+  local targets=("${@}") # target file(s).
-  local count=0
+  local count=0          # processed counter.
-  local total=$#
+  local total=${#}       # total to process.
-  local IFS=$'\n'
 
-  # all files except hidden by default.
+  # all targets except hidden by default.
-  if [[ "${files}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
-    files="[^.]*"
+    targets=([^.]*)
-    total=$(ls -p | grep -v / | wc -l)
+    total=${#targets[@]}
   fi
 
   # process.
-  for file in ${files}; do
+  for target in "${targets[@]}"; do
-    # process only files.
+    # process only targets.
-    if [[ -f "${file}" ]]; then
+    [[ -f "${target}" ]] || continue
-      # increment count.
-      ((count++))
 
-      # extract extension.
+    # increment count.
-      local extension="${file##*.}"
+    ((count++))
-      if [[ "${extension}" = "${file}" ]]; then
-        extension=""
-      else
-        extension=".${extension}"
-      fi
 
-      # hash the new name.
+    # extract extension.
-      local hash=$(sha1sum -- "${file}" | cut -d\  -f1)
+    local extension="${target##*.}"
-      new_name="${hash,,}${extension}"
+    if [[ "${extension}" = "${target}" ]]; then
-      
+      extension=""
-      # prepare status.
+    else
-      local status="[${count}/${total}] ${file} -> ${new_name}"
+      extension=".${extension}"
-
-      # check if same name.
-      if [[ "${file}" = "${new_name}" ]]; then
-        echo -e "${color_green}${status}: no change.${color_default}"
-        continue
-      fi
-
-      # rename file.
-      mv -- "${file}" "${new_name}" &> /dev/null
-
-      # show change.
-      echo -e "${status}"
     fi
+
+    # hash the new name.
+    local hash=$(sha1sum -- "${target}" | cut -d\  -f1)
+    new_name="${hash,,}${extension}"
+    
+    # prepare status.
+    local status="[${count}/${total}] ${target} -> ${new_name}"
+
+    # check if same name.
+    if [[ "${target}" = "${new_name}" ]]; then
+      echo -e "${color_green}${status}: no change.${color_default}"
+      continue
+    fi
+
+    # rename target.
+    mv -- "${target}" "${new_name}" &> /dev/null
+
+    # show change.
+    echo -e "${status}"
   done
 }
 
@@ -107,31 +98,30 @@ name_hash()
 # usage: name_hash_check [FILES]
 name_hash_check()
 {
-  local files="$@"
+  local targets=("${@}") # target file(s).
-  local count=0
+  local total=${#}       # total to process.
-  local total=$#
+  local count=0          # processed counter.
-  local failed=0
+  local failed=0         # failed to process counter.
-  local IFS=$'\n'
 
-  # all files by default.
+  # all targets by default.
-  if [[ "${files}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
-    files="[^.]*"
+    targets=([^.]*)
-    total=$(ls -p | grep -v / | wc -l)
+    total=${#target[@]}
   fi
 
   # process.
-  for file in ${files}; do
+  for target in "${targets[@]}"; do
-    # process only files.
+    # process only targets.
-    if [[ -f "${file}" ]]; then
+    if [[ -f "${target}" ]]; then
       # increment count.
       ((count++))
 
       # status info.
-      local status="[${count}/${total}] ${file}"
+      local status="[${count}/${total}] ${target}"
 
       # extract hashes.
-      local stored="${file%%.*}"
+      local stored="${target%%.*}"
-      local actual=$(sha1sum -- "${file}" | cut -d\  -f1)
+      local actual=$(sha1sum -- "${target}" | cut -d\  -f1)
 
       # compare hashes.
       if [[ "${stored}" = "${actual}" ]]; then
@@ -154,127 +144,127 @@ name_hash_check()
 }
 
 # rename files for Jellyfin series, i.e. Episode S01E01.mkv
-# usage: name_series [SEASON]
+# usage: name_series <SEASON>
 name_series()
 {
-  local season="${1}"
+  local season="${1}"    # season number.
-  local files="${@:2}"
+  local targets="${@:2}" # target files.
-  local count=0
+  local count=0          # processed counter.
-  local total=$#
+  local total=${#}       # total to process.
-  local IFS=$'\n'
 
   # error when no season number specified.
   if [[ "${season}" = "" ]]; then
-    echo "usage: name_series [SEASON]"
+    echo "usage: name_series <SEASON>"
     return 1
   fi
 
-  # all files by default.
+  # all targets by default.
-  if [[ "${files}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
-    files="[^.]*"
+    targets=([^.]*)
-    total=$(ls -p | grep -v / | wc -l)
+    total=${#targets[@]}
   fi
 
   # process.
-  for file in ${files}; do
+  for target in "${targets[@]}"; do
-    # process only files.
+    # process only targets.
-    if [[ -f "${file}" ]]; then
+    if [[ -f "${target}" ]]; then
       # increment episode number.
       ((count++))
 
       # extract new name.
-      local new_name="Episode S${season}E$(printf %02d ${count}).${file##*.}"
+      local new_name="Episode S${season}E$(printf %02d ${count}).${target##*.}"
 
       # prepare status.
-      local status="[${count}/${total}] ${file} -> ${new_name}"
+      local status="[${count}/${total}] ${target} -> ${new_name}"
 
-      # rename file.
+      # rename target.
-      mv -- "${file}" "${new_name}" &> /dev/null
+      mv -- "${target}" "${new_name}" &> /dev/null
       echo -e "${status}"
     fi
   done
 }
 
 # rename files for Kavita manga format.
-# usage: name_manga [SEASON]
+# usage: name_manga <SEASON>
 name_manga()
 {
-  local season="$1"
+  local season="${1}"      # season number.
-  local files="${@:2}"
+  local targets="${@:2}"   # target files.
-  local count=0
+  local count=0            # processed counter.
-  local total=$#
+  local total=${#}         # total to process.
-  local manga="${PWD##*/}"
+  local manga="${PWD##*/}" # manga name.
-  local IFS=$'\n'
 
   # error when no season number specified.
   if [[ "${season}" = "" ]]; then
-    echo "usage: name_manga [SEASON]"
+    echo "usage: name_manga <SEASON>"
     return 1
   fi
 
-  # all files by default.
+  # all targets by default.
-  if [[ "${files}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
-    files="[^.]*"
+    targets=([^.]*)
-    total=$(ls -p | grep -v / | wc -l)
+    total=${#targets[@]}
   fi
 
   # process.
-  for file in ${files}; do
+  for target in "${targets[@]}"; do
-    # process only files.
+    # process only targets.
-    if [[ -f "${file}" ]]; then
+    if [[ -f "${target}" ]]; then
       # increment episode number.
       ((count++))
 
       # extract new name.
-      local new_name="${manga} Vol.${season} Ch.${count}.${file##*.}"
+      local new_name="${manga} Vol.${season} Ch.${count}.${target##*.}"
 
       # prepare status.
-      local status="[${count}/${total}] ${file} -> ${new_name}"
+      local status="[${count}/${total}] ${target} -> ${new_name}"
 
-      # rename file.
+      # rename target.
-      mv -- "${file}" "${new_name}" &> /dev/null
+      mv -- "${target}" "${new_name}" &> /dev/null
       echo -e "${status}"
     fi
   done
 }
 
 # rename files for new extension.
-# usage: name_ext [EXTENSION] [FILES]
+# usage: name_ext <EXTENSION> [FILES]
 name_ext()
 {
-  local extension="$1"
+  local extension="${1}" # new extension.
-  local files="${@:2}"
+  local targets="${@:2}" # target file(s).
-  local count=0
+  local count=0          # processed counter.
-  local total=$#
+  local total=${#}       # total to process.
-  local IFS=$'\n'
+
+  # remove extension name from total files.
+  ((total--)) 
 
   # error when no new extension specified.
   if [[ "${extension}" = "" ]]; then
-    echo "usage: name_ext [EXTENSION] [FILES]"
+    echo "usage: name_ext <EXTENSION> [targets]"
     return 1
   fi
 
-  # all files by default.
+  # all targets by default.
-  if [[ "${files}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
-    files="[^.]*"
+    targets=([^.]*)
-    total=$(ls -p | grep -v / | wc -l)
+    total=${#targets[@]}
   fi
   
   # process.
-  for file in ${files}; do
+  for target in "${targets[@]}"; do
-    # process only files.
+    # process only targets.
-    if [[ -f "${file}" ]]; then
+    if [[ -f "${target}" ]]; then
       # increment count.
       ((count++))
 
       # extract new name.
-      local new_name="${file%.*}"."${extension}"
+      local new_name="${target%.*}"."${extension}"
 
-      # rename file.
+      # rename target.
-      mv -- "${file}" "${new_name}" &> /dev/null
+      mv -- "${target}" "${new_name}" &> /dev/null
 
       # show change.
-      echo "[${count}/${total}] ${file} -> ${new_name}"
+      echo "[${count}/${total}] ${target} -> ${new_name}"
     fi
   done
 }

document/linux/config/bash/module/own.sh

@@ -1,4 +1,5 @@
 # change file ownership to specified user id and restrict access to him.
+# usage: own [USER] [FILES]
 own() 
 {
   local file="${2}"
@@ -20,11 +21,3 @@ own()
   # remove access from group and others.
   chmod -077 -R "${file}"
 }
-
-# autocomplete.
-_own()
-{
-  _autocomplete_first_ls "{0,1000}"
-}
-
-complete -F _own own

document/linux/config/bash/module/parse.sh

@@ -0,0 +1,20 @@
+# parse data and output simplified format.
+# usage: parse_simplify <STRING>
+parse_simplify()
+{
+  echo "${*}" | \
+    sed -e "s/ /_/g" \
+        -e "s/[^[:alnum:]\._-]//g" \
+        -e "s/_\+/_/g" -e "s/\.\+/\./g" -e "s/-\+/-/g" \
+        -e "s/_-/_/g" -e "s/-_/_/g" -e "s/\.-/\./g" -e "s/-\./\./g" -e "s/\._/\./g" -e "s/_\./\./g" \
+        -e "s/_\+/_/g" \
+        -e "s/^_//" -e "s/_$//"
+}
+
+# parse data keeping only alphanumeric characters.
+# usage: parse_alnum <STRING>
+parse_alnum()
+{
+  echo "${*}" | \
+    sed -e "s/[^[:alnum:]]//g"
+}

document/linux/config/bash/module/toolbx.sh

@@ -1,11 +1,12 @@
 # create toolbx container with default or specified name.
+# usage: tb [NAME]
 tb()
 {
   local name="$1"
   
   # set default name.
   if [[ "$name" = "" ]]; then
-    name="toolbx"
+    name="main"
   fi
 
   # start container or run command inside it if specified.
@@ -37,13 +38,14 @@ tb()
 }
 
 # remove toolbx container with default or specified name.
+# usage: tbk [NAME]
 tbk()
 {
   local name="$1"
   
   # set default name.
   if [[ "$name" = "" ]]; then
-    name="toolbx"
+    name="main"
   fi
 
   # stop and remove podman container.
@@ -51,13 +53,14 @@ tbk()
 }
 
 # install rpm-fusion repository.
+# usage: tb_rpmfusion [NAME]
 tb_rpmfusion()
 {
   local name="$1"
   
   # set default name.
   if [[ "$name" = "" ]]; then
-    name="toolbx"
+    name="main"
   fi
   
   # run dnf inside container.
@@ -70,7 +73,7 @@ alias tbl="toolbox list -c"
 # autocomplete.
 _tb_containers()
 {
-  _autocomplete "$(toolbox list -c | sed -e '1d' | awk '{ print $2 }')"
+  _autocomplete_first "$(toolbox list -c | sed -e '1d' | awk '{ print $2 }')"
 }
 
 complete -F _tb_containers tb tbk tb_rpmfusion