[SOLVED] Wrap/overwrite function in Bash

Issue

How could I rewrite echo to print some character before anything I pass to it?

I was thinking about something like this which does not work:

alias oldecho=echo
echo(){oldecho ==> $1}

Solution

Close.

echo() { builtin echo "==>" "$@"; }

builtin forces the rest of the command to be executed as a builtin, which simplifies reimplementing builtins.

Your problem, though, was not quoting the >.

Answered By - rici

Answer Checked By - David Goodson (WPSolving Volunteer)