utils upgrade

utils/.local/bin/httpcode

@@ -1,5 +1,25 @@
 #!/usr/bin/env bash
-set -euo pipefail
+set -eo pipefail
+
+show_usage() {
+    cat <<EOF
+Usage: $(basename "$0") [-h] [search]
+
+List or search HTTP status codes.
+
+Options:
+    -h, --help    Show this help message
+
+Arguments:
+    search        Search term to filter status codes
+
+EOF
+}
+
+if [[ "$1" == "-h" || "$1" == "--help" ]]; then
+    show_usage
+    exit 0
+fi
 
 statuses="100 Continue
 101 Switching Protocols
@@ -62,7 +82,7 @@ statuses="100 Continue
 511 Network Authentication Required"
 
 if [ $# -eq 0 ]; then
-  echo "$statuses"
+    echo "$statuses"
 else
-  echo "$statuses" | grep -i --color=never "$@"
+    echo "$statuses" | grep -i --color=never "$@"
 fi