Bash script to edit contents of your clipboard with $EDITOR on macOS

clip.sh

#!/bin/bash
set -o errexit  # Exit on error
set -o nounset  # Treat unset variables as an error
set -o pipefail # Consider errors in a pipeline

default_editor=${EDITOR:-vim}

temp_file_path=$(mktemp /tmp/clip_temp.XXXXXX)
trap "rm -f $temp_file_path" EXIT

pbpaste > $temp_file_path
file_md5_hash=$(md5 $temp_file_path)
$default_editor $temp_file_path
new_file_md5_hash=$(md5 $temp_file_path)

if [ "$file_md5_hash" != "$new_file_md5_hash" ]; then
    echo "File has been modified. Updating clipboard with editor contents"
    pbcopy < $temp_file_path
else
    echo "No changes detected, ignoring output"
fi