gistfile1.txt

$ cat file.sh 
#!/bin/bash

set -e

function command_not_found_handle {
  echo "Command not found: $1"
  exit 1
}

if [[ "dne" == "dne" ]] && "dne" == "dne" ]]; then
  echo yes
else 
  echo no
fi

echo "did not exit"

$ ./file.sh  
Command not found: dne
no
did not exit