Bash trap on exit from function

Question

Is there possible in bash to call some command when function exits. I mean something like:

function foo {     # something like this maybe?     trap "echo \"exit function foo\"" EXIT      # do something }  foo 

And i want exit function foo to be printed out.

Answer 1

Yes, you can trap RETURN :

$ function foo() { >   trap "echo finished" RETURN >   echo "doing some things" > } $ foo 

Will display

doing some things finished 

From man bash's description of the trap builtin :

If a sigspec is RETURN, the command arg is executed each time a shell function or a script executed with the . or source builtins finishes executing.