Difference between revisions of "Bashrc helpers"

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[[Category:Dotfiles]]
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#REDIRECT [[Bash/Functions]]
[[zh-CN:Bashrc helpers]]
 
{{Merge|Core Utilities}}
 
 
 
inspired by the note taker, little todo script
 
todo() {
 
    test -f $HOME/.todo || touch $HOME/.todo
 
    if test $# = 0
 
    then
 
            cat $HOME/.todo
 
    elif test $1 = -l
 
    then
 
            cat -n $HOME/.todo
 
    elif test $1 = -c
 
    then
 
            > $HOME/.todo
 
    elif test $1 = -r
 
    then
 
            cat -n $HOME/.todo
 
            echo -ne "----------------------------\nType a number to remove: "
 
            read NUMBER
 
            sed -ie ${NUMBER}d $HOME/.todo
 
    else
 
            echo $@ >> $HOME/.todo
 
    fi
 
}
 
 
 
 
 
a little note taker
 
note ()
 
{
 
        #if file doesn't exist, create it
 
        [ -f $HOME/.notes ] || touch $HOME/.notes
 
        #no arguments, print file
 
        if [ $# = 0 ]
 
        then
 
                cat $HOME/.notes
 
        #clear file
 
        elif [ $1 = -c ]
 
        then
 
                > $HOME/.notes
 
        #add all arguments to file
 
        else
 
                echo "$@" >> $HOME/.notes
 
        fi
 
}
 
 
 
 
 
extracting function, alternatively you can use atool (in community-repo)
 
extract() {
 
  local e=0 i c
 
  for i; do
 
    if [ -f $i && -r $i ]; then
 
        c=''
 
        case $i in
 
          *.tar.bz2) c='tar xjf'    ;;
 
          *.tar.gz)  c='tar xzf'    ;;
 
          *.bz2)    c='bunzip2'    ;;
 
          *.gz)      c='gunzip'    ;;
 
          *.tar)    c='tar xf'    ;;
 
          *.tbz2)    c='tar xjf'    ;;
 
          *.tgz)    c='tar xzf'    ;;
 
          *.7z)      c='7z x'      ;;
 
          *.Z)      c='uncompress' ;;
 
          *.exe)    c='cabextract' ;;
 
          *.rar)    c='unrar x'    ;;
 
          *.xz)      c='unxz'      ;;
 
          *.zip)    c='unzip'      ;;
 
          *)    echo "$0: cannot extract \`$i': Unrecognized file extension" >&2; e=1 ;;
 
        esac
 
        [ $c ] && command $c "$i"
 
    else
 
        echo "$0: cannot extract \`$i': File is unreadable" >&2; e=2
 
    fi
 
  done
 
  return $e
 
}
 
 
 
 
 
 
 
docview ()
 
{
 
  if [ -f $1 ] ; then
 
      case $1 in
 
          *.pdf)      xpdf $1    ;;
 
          *.ps)        oowriter $1    ;;
 
          *.odt)      oowriter $1    ;;
 
          *.txt)      leafpad $1      ;;
 
          *.doc)      oowriter $1      ;;
 
          *)          echo "don't know how to extract '$1'..." ;;
 
      esac
 
  else
 
      echo "'$1' is not a valid file!"
 
  fi
 
}
 
 
 
 
 
calculator
 
calc() { echo "scale=3;$@" | bc -l ; }
 
 
 
 
 
 
 
Kingbash - menu driven auto-completion (see https://bbs.archlinux.org/viewtopic.php?id=101010)
 
 
 
install kingbash from aur then insert following in your .bashrc
 
function kingbash.fn() {
 
  echo -n "KingBash> $READLINE_LINE" #Where "KingBash> " looks best if it resembles your PS1, at least in length.
 
  OUTPUT=`/usr/bin/kingbash "$(compgen -ab -A function)"`
 
  READLINE_POINT=`echo "$OUTPUT" | tail -n 1`
 
  READLINE_LINE=`echo "$OUTPUT" | head -n -1`
 
  echo -ne "\r\e[2K"; }
 
bind -x '"\t":kingbash.fn'
 

Latest revision as of 18:50, 11 April 2015

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