Ask HN: What are your go to shell one-liners?

    alias s='cd ..'

    export EDITOR=vim

    function highlight() {
        egrep --color "$1|\$"
    }

    function mkcd() {
        mkdir $1
        cd $1
    }

    function git-cite() {
        git log -1 $1 "--pretty=format:%H (\"%s\")%n" | sed -e 's/\([0-f]\{12\}\)[0-f]*/\1/'
    }

    alias gd='git diff'
    alias gpr='git pull --rebase'

    function gcmr() {
        git checkout origin/merge-requests/$1
    }

    C-r      search history and recall (C-R for another match)
    C-o      run and recall next (C-O next, C-O next, ...)
    C-M-/    undo last edit
    M-d      delete next word
    M-backsp delete prev word
    C-y      paste text deleted by the two above (combined), Emacs's "yank"

  # go back to the last directory
  cd -

  # run last command with sudo
  sudo !!

  # truncate file
  > /tmp/file-to-truncate.txt

  # show directory size
  du -sh my-dir

  # refresh output of command every 2 seconds (needs watch command)
  watch ls /tmp

  # check how long a command takes
  time du -sh mydir

  function ..() { 
    for i in $(seq 1 $1); do cd ..; done 
  }

  # cd ..
  .. 

  # cd ../../../../
  .. 4

    #!/bin/bash
    # install in /usr/local/bin/nap
    if [ -z $1 ]; then
        echo "No time provided. Usage: nap [-cl] [minutes]"
        exit 2
    fi
    if [[ $1 == *c ]]; then
        echo Cancelling sleep. PIDs \(if any\): `pgrep -f "nap"`
        pkill -f "nap"
        exit 0
    fi
    if [[ $1 == *l ]]; then
        ps -Af | grep nap
        exit 0
    fi
    time=$(($1 * 60))
    echo Sleeping in $1 minutes...
    sleep $time && pmset sleepnow&

  $ set -o vi

  $ vi ’grep -l pattern files' 

    caffeinate -d -i -t (math "((7*60)+30)*60")

  MY_STR=$(awk -F'/' '{print $2}' <<< "$FROM")

      du -s * | sort -nr | head

   emacs $(git grep <whatever> | cut -d: -f1 | uniq)

    $ ^sometihng^something

    win