Improved validate_int

Use bash builtin's for validate_int example
2015-09-18 16:36:01 +01:00
parent 977badef4b
commit 9bc2991ff6
1 changed files with 4 additions and 1 deletions
--- a/README.md
+++ b/README.md
@@ -91,7 +91,10 @@ For example, this is a valid validator:

    function validate_int
    {
-        echo "$1" | grep -E '^[0-9]+$'
+        if [[ "$1" =~ ^[0-9]+$ ]] ; then
+            return 0
+        fi
+        return 1
    }

    cmdarg 'x' 'x-option' 'some opt' '' validate_int