copy

#!/bin/bash
# copy - universal clipboard script for Linux, macOS, Windows

copy_to_clipboard() {
  if command -v xclip >/dev/null 2>&1; then
    xclip -selection clipboard
  elif command -v wl-copy >/dev/null 2>&1; then
    wl-copy
  elif command -v pbcopy >/dev/null 2>&1; then
    pbcopy
  elif command -v clip.exe >/dev/null 2>&1; then
    clip.exe
  else
    echo "Error: No clipboard command found (install xclip, wl-clipboard, pbcopy, or use Windows with clip.exe)." >&2
    exit 1
  fi
}

if [ -t 0 ]; then
  # No stdin (no pipe)
  if [ $# -eq 0 ]; then
    echo "Usage: echo 'text' | copy   OR   copy 'text to copy'" >&2
    exit 1
  else
    printf "%s" "$*" | copy_to_clipboard
  fi
else
  # Input comes from a pipe
  copy_to_clipboard
fi