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提高Linux工作效率的bash技巧

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看的这篇文章，感觉有效果的是下面几个。

帮你保持历史操作，跳回到你经常使用的目录。

下面是我的配置文件里脚本：

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# USAGE:
# s bookmarkname - saves the curr dir as bookmarkname
# g bookmarkname - jumps to the that bookmark
# g b[TAB] - tab completion is available
# l - list all bookmarks

# save current directory to bookmarks
touch ~/.sdirs
function s {
  cat ~/.sdirs | grep -v "export DIR_$1=" > ~/.sdirs1
  mv ~/.sdirs1 ~/.sdirs
  echo "export DIR_$1=$PWD" >> ~/.sdirs
}

# jump to bookmark
function g {
  source ~/.sdirs
  cd $(eval $(echo echo $(echo \$DIR_$1)))
}

# list bookmarks with dirnam
function l {
  source ~/.sdirs
  env | grep "^DIR_" | cut -c5- | grep "^.*="
}
# list bookmarks without dirname
function _l {
  source ~/.sdirs
  env | grep "^DIR_" | cut -c5- | grep "^.*=" | cut -f1 -d "="
}

# completion command for g
function _gcomp {
    local curw
    COMPREPLY=()
    curw=${COMP_WORDS[COMP_CWORD]}
    COMPREPLY=($(compgen -W '`_l`' -- $curw))
    return 0
}

# bind completion command for g to _gcomp
complete -F _gcomp g

##创建自己的命令包.
通过脚本，我可以将ssh key拷贝到任何网站服务器——只需要键入dur keyuser@somehost.

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function dur {
  case $1 in
  clone|cl)
    git clone git@bitbucket.org:nicolapaolucci/$2.git
    ;;
  move|mv)
    git remote add bitbucket git@bitbucket.org:nicolapaolucci/$(basename $(pwd)).git
    git push --all bitbucket
    ;;
  trackall|tr)
    #track all remote branches of a project
    for remote in $(git branch -r | grep -v master ); do git checkout --track $remote ; done
    ;;
  key|k)
    #track all remote branches of a project
    ssh $2 'mkdir -p .ssh && cat >> .ssh/authorized_keys' < ~/.ssh/id_rsa.pub
    ;;
  fun|f)
    #list all custom bash functions defined
    typeset -F | col 3 | grep -v _ | xargs | fold -sw 60
    ;;
  def|d)
    #show definition of function $1
    typeset -f $2
    ;;
  help|h|*)
    echo "[dur]dn shell automation tools"
    echo "commands available:"
    echo " [cl]one, [mv|move]"
    echo " [f]fun lists all bash functions defined in .bashrc"
    echo " [def] <fun> lists definition of function defined in .bashrc"
    echo " [k]ey <host> copies ssh key to target host"
    echo " [tr]ackall], [h]elp"
    ;;
  esac
}