earthgecko · February 10, 2013 17:45
diff --git a/is_integer b/is_integer
 function is_integer () {
 # exit code 0 - the string is an integer
 # exit code 1 - the string is not an integer
  local string=$1
  [[ $string == ${string//[^0-9]/} ]]
 }
	function is_integer () {
	# exit code 0 - the string is an integer
	# exit code 1 - the string is not an integer
	local string=$1
	[[ $string == ${string//[^0-9]/} ]]
	}