Find and optionally delete pacnew and pacsave files on Arch Linux

find-pacnew

#!/usr/bin/env bash
# find-pacnew - find and optionally delete pacnew and pacsave files
# Copyright (c) 2020  Michael Sasser <Michael@MichaelSasser.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

function show_help() {
    # Show the help function without exiting.
    echo -e "usage: find-pacnew [-h] [-d]\n"
    echo "Recursively find and optionally delete pacnew/pacsave files in /etc."
    echo -e "Make sure to check and diff all files before deleting!\n"
    echo "optional arguments:"
    echo -e "  -h, --help\t\tShow this help"
    echo -e "  -d, --delete\t\tDelete the found files"
}

delete=0  # set to 1, if [-d|--del|-delete]

ARGS=$(getopt -o 'h::d::' --long 'help::,delete::,del' -- "$@") || exit
eval "set -- $ARGS"

while true; do
    case $1 in
        -h|--help)
            show_help; exit 0;;
        -d|--del|--delete)
            delete=1; shift; shift;;
        --)
            shift; break;;
        *)
            show_help; exit 1;;
    esac
done

if [ "${#@}" -gt 0 ]; then  # If leftovers show help and exit 1
    show_help
    exit 1
fi

# find pacnew/pacsave
files="$(find /etc -regextype posix-extended -regex ".+\.pac(new|save)" 2> /dev/null)"

if [ "$delete" -eq 1 ]; then  # delete
    while IFS= read -r file; do
        if [ "${#file}" -gt 0 ]; then
            rm "$file"
            echo "$file ... deleted"
        else
            echo "Nothing to do."
        fi
    done <<< "$files"
else  # just show files
    echo "$files"
fi


# vim: set ft=sh :