pc - copy to clipboard
```bash
#!/bin/bash
# copy to clipboard
if [ -n "$DISPLAY" ]; then # X11
  cat "$@" | xsel -i -b
elif [ -d "/Applications" ]; then # macos
  cat "$@" | pbcopy
elif [ -d "/cygdrive/c/cygwin64" ]; then # cygwin
  cat "$@" > /dev/clipboard
else
  echo "Cannot copy as not gui" > /dev/stderr
fi
```
pcw - use which to find a file and copy that to the clipboard
```bash
#!/bin/bash
a="$(which "$1")"
if exists "$a"; then
  pc "$a"
fi
```
pp - paste from clipboard, to stdout, and possibly to named files (use -y switch to enable clobbering, else it will not overwrite)
```bash
#!/bin/bash
if [ -n "$DISPLAY" ]; then # X11
  paste() { xsel -o -b; }
elif [ -d "/Applications" ]; then # macos
  paste() { pbpaste; }
elif [ -d "/cygdrive/c/cygwin64" ]; then # cygwin
  paste() { cat /dev/clipboard; }
else
  echo "Cannot paste as not gui" > /dev/stderr
fi
clobber=n
if [ $# = 0 ]; then
  paste
  exit
fi
for s; do
  if [ "$s" = "-y" ]; then
    clobber=y
    continue
  fi
  if [ -n "$s" ]; then
    if [ "$clobber" = "y" -o ! -e "$s" ]; then
      paste | tee "$s"
    elif [ -e "$s" ]; then
      echo "Not overwriting $s"
    fi
  else
    paste
  fi
done
```