Run specific command or script in all sub-directories.

exec.sh

#!/bin/bash
cd "$(dirname "${BASH_SOURCE[0]}")"

function execute() {
        cd $i
        echo -e "\e[91m$x:\e[0m\e[92m`pwd`\e[0m"
        case $1 in
                ls) $@ --color=auto ;;
              grep) $@ --color=auto ;;
             fgrep) $@ --color=auto ;;
             egrep) $@ --color=auto ;;
                 *) $@ ;;
        esac
        echo ""
}

x=0
for i in */; do
        x=$((x+1))
        ( execute $@ )
done