foo.sh

#!/bin/bash

echo '--- 1 ---'
ls -1 | cowsay

function pause {
   read -p "$*"
}

function multi {
  while read -r; do
    for i in ${@:1}; do
      $i $REPLY;
    done
  done
}

pause 'Press [Enter] key to continue...'
echo '--- 2 ---'
ls -1 | multi cowsay