utils upgrade

utils/.local/bin/perm

@@ -1,4 +1,22 @@
 #!/usr/bin/env bash
+set -eo pipefail
+
+if [[ "$1" == "-h" || "$1" == "--help" ]]; then
+    cat <<EOF
+Usage: $(basename "$0") [-h]
+
+Set default permissions for files and directories in current directory.
+
+Options:
+    -h, --help    Show this help message
+
+Sets:
+    - Files: 0664 (rw-rw-r--)
+    - Directories: 0775 (rwxrwxr-x)
+
+EOF
+    exit 0
+fi
 
 # TODO permissions via arguments