trash

#!/bin/bash

# MIT License
# 
# Copyright (c) 2016 Hiroyuki Matsuo
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

# Abort this script if error happens
set -e

# Get this command's name
CMD_NAME=`basename $0`

# Check whether the OS is macOS or not
if [ "$(uname)" != 'Darwin' ]; then
    echo "${CMD_NAME}: You can execute this command only on macOS." 1>&2
    exit 1
fi

# Parse specified options
FLAG_R=false
while getopts :rR OPT; do
    case $OPT in
        r)  FLAG_R=true;;
        R)  FLAG_R=true;;
        \?) echo "${CMD_NAME}: ${OPTARG}: Illegal option." 1>&2;
            exit 1;;
    esac
done

# Shift specified options
shift $((OPTIND - 1))

# Check the number of command line args
if [ "${#}" -lt 1 ]; then
    echo "Usage: ${CMD_NAME} [-r] <file>..." 1>&2
    exit 1
fi

# Move specified files / directories to the trash box
for NAME in "${@}"; do
    # Don't remove "." and ".."
    if [ "${NAME: -1}" == "." -o "${NAME: -1}" == ".." ]; then
        echo "${CMD_NAME}: \".\" and \"..\" may not be removed." 1>&2
        continue
    fi
    # Check whether specified file / directory exists
    if [ ! -e "${NAME}" ]; then
        echo "${CMD_NAME}: ${NAME}: No such file or directory." 1>&2
        continue
    fi
    # Require "-r" option when remove directory
    if [ -d "${NAME}" -a "${FLAG_R}" != true ]; then
        echo "${CMD_NAME}: ${NAME}: Require \"-r\" option when remove directory." 1>&2
        continue
    fi
    # Calculate the absolute path
    TARGET=$(cd `dirname "${NAME}"` && pwd)"/"`basename "${NAME}"`
    # Remove specified file / directory
    osascript -e """
    tell application \"Finder\"
        move POSIX file \"${TARGET}\" to trash
    end tell
    """ > /dev/null
done