utils upgrade

utils/.local/bin/copy

@@ -1,17 +1,33 @@
 #!/usr/bin/env bash
 set -eo pipefail
 
-if hash pbcopy 2>/dev/null; then
-  exec pbcopy
-elif hash xclip 2>/dev/null; then
-  exec xclip -selection clipboard
-elif hash putclip 2>/dev/null; then
-  exec putclip
-else
-  rm -f /tmp/clipboard 2> /dev/null
-  if [ $# -eq 0 ]; then
-    cat > /tmp/clipboard
-  else
-    cat "$1" > /tmp/clipboard
-  fi
+if [[ "$1" == "-h" || "$1" == "--help" ]]; then
+    cat <<EOF
+Usage: $(basename "$0") [-h] [file]
+
+Copy content to system clipboard.
+
+Options:
+    -h, --help    Show this help message
+
+Arguments:
+    file          File to copy (reads from stdin if not specified)
+
+EOF
+    exit 0
+fi
+
+if hash pbcopy 2>/dev/null; then
+    exec pbcopy
+elif hash xclip 2>/dev/null; then
+    exec xclip -selection clipboard
+elif hash putclip 2>/dev/null; then
+    exec putclip
+else
+    rm -f /tmp/clipboard 2> /dev/null
+    if [ $# -eq 0 ]; then
+        cat > /tmp/clipboard
+    else
+        cat "$1" > /tmp/clipboard
+    fi
 fi