How To: Automatically cd to a directory after you create it

The majority of the times that I create a directory I would then change to that directory. To make this happen automatically I add the following to my .bashrc :

mkcd () { mkdir -p "$@" && eval cd "\"\$$#\""; }

Example :

$ mkcd ~/tmp/FOO

$ pwd

/home/cw/tmp/FOO

How To: Display your Top 10 cli commands




Its useful to be able to see which command you use most often on a Linux box. I add the following to my .bashrc :

cli-top-10() {

  history | awk '{a[$2]++ } END{for(i in a){print a[i] " " i}}' | sort -rn | head

}

Example output :

57 ls

49 cd

26 mv

25 curl

18 wget

17 rm

15 sudo

13 packer

12 docker

12 vim

How To: Permanently Display line numbers for Vim or Vi

It can be very useful when troubleshooting to display line numbers in Vim or Vi. To enable this in your ~/.vimrc file add :

:set number

which can also be manually set within Vim or Vi. Within the editor to remove the line numbers :

:set nonumber