.bashrc
author Oleksandr Gavenko <gavenkoa@gmail.com>
Sun, 30 Dec 2018 12:26:48 +0200
changeset 915 691db6af02e4
parent 909 a2940bea3a6d
child 916 6abe6497819a
permissions -rw-r--r--
Change rules size only on SIGWINCH. $COLUMNS isn't updated on SIGWINCH yet so "tput" is used. For better performance ruler is calculated by substring. Moving ruler handler to trap cleans console from garbage when "set -x" is set in interactive session. It is useful during debugging of bash completion.
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# set -x
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# set -u
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# XXX
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# [[ -f /etc/bashrc ]] && . /etc/bashrc
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if [[ -f ~/.env ]]; then
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  . ~/.env
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fi
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shopt -s checkwinsize
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shopt -s promptvars
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_my_ruler_handler() {
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  local ruler='================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================'
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  local size=`tput cols`
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  ruler=${ruler:0:${size}}
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  _my_ruler=$ruler
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}
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_my_ruler_handler
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trap '_my_ruler_handler' SIGWINCH
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PS1='\n${_my_ruler}\r$?|\u@\h \w \nbash# '
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PS2='> '
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case "$TERM" in
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  xterm*|eterm-color|screen|linux|cygwin)
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    PS1=$'\n\e[34m\e[1m${_my_ruler}\r$?|\e[31m\u\e[35m@\h\e[0m\e[36m \w \n\[\e[1m\e[31m\]bash#\[\e[0m\] '
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    PS2=$'\[\e[32m\]> \[\e[0m\]'
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  ;;
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esac
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# Set current directory in terminal emulator title.
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case "$TERM" in
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  xterm*|screen|linux|cygwin)
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    PS1=$'\e]0;bash \u@\h \w\a'"$PS1"
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  ;;
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esac
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if command -v dircolors >/dev/null 2>&1 && [[ -f ~/.dircolors ]]; then
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  eval "`dircolors -b ~/.dircolors`"
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fi
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# Can be XXX /visible. I like bell.
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# set bell-style visible
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# Don't store duplicate adjacent items in the history.
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#   ignorespace     do not save lines that start with space
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#   erasedups       all previous lines matching the current line to be removed from
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#                   the history list before that line is saved
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HISTCONTROL=ignorespace:erasedups
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# Don't store noisy/dumb items.
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# TIP: MC command start with space.
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HISTIGNORE=\
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" cd *":\
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"vlc *":ls:pwd
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# To these options assigned default value, as they satisfy my needs I comment them.
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# HISTFILE=~/.bash_history  # where is command history stored
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# HISTFILESIZE=500          # how many lines been in $HISTFILE
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# HISTSIZE=500              # how many lines been stored in bash process
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HISTTIMEFORMAT="%F %T "
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# Make Bash append rather than overwrite the history.
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shopt -s histappend
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shopt -s histreedit
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shopt -s histverify
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# Technique to share command history across Bash secctions.
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# Just run:
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#   history -n
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# to reload history.
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# This setting automatically update history file, but ignore HISTCONTROL=erasedups settings.
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# PROMPT_COMMAND='history -a'
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# Minor errors in the spelling of a directory component in a cd command will
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# be corrected.
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shopt -s cdspell
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# Save all lines of a multiple-line command in the same history entry.
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shopt -s cmdhist
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# Allows files beginning with a dot ('.') to be returned in the results of path-name expansion.
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shopt -s dotglob
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# ksh-88 egrep-style extended pattern matching.
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shopt -s extglob
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# Enable '**' patttern matching. If the pattern is followed by a /, only dirs match.
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shopt -s globstar
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# Ignore case in glob.
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shopt -s nocaseglob
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# Show stopped jobs before exit. Next ^D force to leave bash...
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shopt -s checkjobs
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# Adjust settings according to current terminal window width
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# which may have changed while the last command was running
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# (which is a common occurance for vim/less/etc.)
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# Note this is already set in /etc/bashrc on Fedora 8 at least.
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shopt -s checkwinsize
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# Let me have core dumps
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ulimit -c unlimited
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################################################################
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# shortcut aliases
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alias ..="cd .."        #go to parent dir
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alias ...="cd ../.."    #go to grandparent dir
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alias -- -="cd -"       # go to previous dir
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alias l.='ls -d .*'     #list hidden files
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alias ll='ls -lhrt'     #extra info compared to "l"
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alias lld='ls -lUd */'  #list directories
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# I prefer EN man pages.
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alias man='LANG=C man'
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alias j='jobs '
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# make and change to a directory
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md () { mkdir -p "$1" && cd "$1"; }
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myfind() { find . -iname "$1"; }
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# Usage example:
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#  mypath EMACSLOADPATH '*.el' \;
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#  mypath TEXINPUTS "*cyr*"
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#  VAR=`cygpath -p '$INCLUDE'` mypath VAR "windows*"
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mypath() {
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  local var="$2"
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  [[ -z $var ]] && var=PATH
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  local delim="$3"
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  [[ -z $delim ]] && delim=:
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  local split
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  IFS="$delim" command eval "read -ra split <<< \"\${$var}\""
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  for dir in "${split[@]}"; do
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    [[ -z "$dir" ]] && continue
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    if [[ -f "$dir"/"$1" ]]; then
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      echo "$dir"/"$1"
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    else
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      ls -d "$dir"/$1 2>/dev/null | cat
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    fi
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  done
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}
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_mypath() {
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  if [[ $COMP_CWORD = 2 ]]; then
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    COMPREPLY=( $(compgen -v -- "${COMP_WORDS[2]}") )
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  fi
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}
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complete -F _mypath mypath
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# LANG=C for speed.
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alias grep='GREP_COLOR="31;47" LANG=C grep --color=auto'
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case $OSTYPE in
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  linux*|cygwin) alias ls='ls --color=auto' ;;
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esac
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alias minicom='minicom -c on'
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# Weeks start on Monday.
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alias ncal='ncal -M'
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# alias diff='LC_ALL=C TZ=GMT0 diff -Naur' #normalise diffs for distribution
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# alias sudo='sudo env PATH=$PATH' #work around sudo built --with-secure-path (ubuntu)
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# alias vim='vim -X' #don't try to contact xserver (which can hang on network issues)
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# alias gdb='gdb -tui' #enable the text window interface if possible
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alias dquilt="quilt --quiltrc=${HOME}/.quiltrc-dpkg"
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# what most people want from od (hexdump)
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# alias hd='od -Ax -tx1z -v'
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case $OSTYPE in
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  # CYGWIN=noglob causes https://github.com/docker/machine/issues/4516
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  cygwin) alias docker-machine='CYGWIN= docker-machine' ;;
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esac
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# --blank-lines-after-procedures --break-before-boolean-operator --braces-on-if-line --braces-on-struct-decl-line
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# --comment-indentationn --space-after-cast --line-comments-indentationn --declaration-indentationn --honour-newlines
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# --no-space-after-function-call-names --no-tabs --struct-brace-indentationn --start-left-side-of-comments
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alias indent-bifit="indent -bap -bbo -br -brs -cdw -ce -cli0 -c0 -cs -d0 -di0 -hnl -l120 -lc90 -i4 -npcs -ppi 3 -npsl -nut -sbi4 -sc"
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# canonicalize path (including resolving symlinks)
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# alias realpath='readlink -f'
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# Fix lang under X.
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alias en="dbus-send --dest=ru.gentoo.KbddService /ru/gentoo/KbddService ru.gentoo.kbdd.set_layout uint32:0"
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alias ут="dbus-send --dest=ru.gentoo.KbddService /ru/gentoo/KbddService ru.gentoo.kbdd.set_layout uint32:0"
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################################################################
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# Key binding.
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88a4aa7a6e7c set -o emacs
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set -o emacs
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if [[ $- == *i* ]]; then
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  bind '"\e/": dabbrev-expand'
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  bind '"\ee": edit-and-execute-command'
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fi
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################################################################
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# Completion.
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if [[ -f /etc/bash_completion ]]; then
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  # in Debian
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  . /etc/bash_completion
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  complete -F _quilt_completion dquilt
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elif [[ -f /usr/share/bash-completion/bash_completion ]]; then
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  # in Cygwin
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  . /usr/share/bash-completion/bash_completion
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elif [[ -f ~/usr/etc/bash_completion ]]; then
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  . ~/usr/etc/bash_completion
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fi
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# Load local completions.
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if [[ -f ~/.bash_completion ]]; then
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  . ~/.bash_completion
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fi
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if [[ -d ~/.bash_completion.d ]]; then
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  for f in ~/.bash_completion.d/* ~/.bash_completion.d/.*; do
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    [[ -f "$f" ]] && . "$f"
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  done
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fi
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449
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################################################################
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# Load custom settings (user editable).
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# Placed to the end to allow override skel settings.
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if [[ -f ~/.env.local ]]; then
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  . ~/.env.local
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fi
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################################################################
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# Useful functions.
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datediff() {
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  [[ -n "$1" ]] || { echo first argument is missing; return 1; }
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  [[ -n "$2" ]] || { echo second argument is missing; return 1; }
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  local diff=$(( $(date -d "$1" +%s) - $(date -d "$2" +%s) ))
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  local sec=$(( diff % 60 ))
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  diff=$(( diff / 60 ))
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  local min=$(( diff % 60 ))
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  diff=$(( diff / 60 ))
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  local hour=$(( diff % 24 ))
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  local day=$(( diff / 24 ))
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  echo $day days $hour hours $min minutes $sec seconds
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}
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# For linguistic analysis.
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myfreq() {
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  ag --nofilename -C1 -- "$1"
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  printf '\n\n\e[31mtotal:\e[0m '
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  ag --nofilename --count -- "$1" | awk '{c += $1} END {print c}'
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}
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# "YYYY-MM-DD hh:mm:ss" or "hh:mm" for current day and random sec.
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mygit-date() {
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  if [[ "02:23" =~ ^[0-9]{2}:[0-9]{2}$ ]]; then
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      local sec=$(($RANDOM % 60))
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      if [[ ${#sec} = 1 ]]; then
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          sec=0$sec
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      fi
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      local yyyymmdd=`date +%F`
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      set "$yyyymmdd $1:$sec"
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  fi
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  echo GIT_COMMITTER_DATE='"'"$1"'"' git commit --amend --no-edit --date '"'"$1"'"'
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  GIT_COMMITTER_DATE="$1" git commit --amend --no-edit --date "$1"
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}
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