Awk

• pkill

  #!/bin/bash
  ps -ef|grep "$*" |grep -v grep| awk '{ print $2 }' |xargs kill
  

• Convert a DOS file to Unix

  awk '{ sub("\r$", ""); print }' dosfile.txt > unixfile.txt
  

• Convert a Unix file to DOS

  awk 'sub("$", "\r")' unixfile.txt > dosfile.txt