How to run a command after any command finished-CodePudding

How do i run an arbitrary command like echo Done after any command has finished?

I want to be able to put any command in the terminal and it to return the same command when its done i.e.

> pwd
/home/user
Done
> ls
...
Done
> whoami
user
Done

I know if it is something specific like cd the code would be:

function cd () {
  builtin cd $@
  
  echo Done
}

but how do i do this for all commands?

CodePudding user response：

Ok i found 2 ways:

PROMPT_COMMAND='echo Done'

ZSH:

precmd() { "echo Done" }

CodePudding user response：

With bash. This works in a script, too. Add it to your ~/bashrc.

function after_every_command() {
   echo "last command: $BASH_COMMAND"
}

trap 'after_every_command' DEBUG