Some Unix unique Commands

There are some unique Unix commands which is very useful and handy when working

• Find command that you dont know

  apropos "list dir"
  man -k "find files"

• Fixing Typos in last command line

  dc /tmp 
  ^dc^cd 

• Bang ! commands

  !! 
  yum install vim 
  sudo !!

 !* 
 !^  
 !$
 !
 !?keyword? 
 !-N

• Incron

• Double dash

  rm -rf -- $symbl_dir or mkdir -- $symbl_dir

• Comma and Braces Operators

  cp httpd.conf{,.bak}  # backup httpd.conf to httpd.conf.bak
  mv httpd.conf{.back,}
  cp example old-!#^

• Push and Pop Directories

  pushd dirs popd 

• Incremental backups with rsync

  rsync -a –link-dest=prevbackup src dst

• Ascii processtree

  ps -aux -forest

• Tree view of git commits

  git log --graph --oneline

• Tee

  crontab -l | tee crontab.bkp

• ncurses disk usage analyzer

  ncdu  # yum install ncdu 

• Create empty file

  > file 

• scripting