Backup Arch linux files

gather_files.sh

#!/usr/bin/env bash

MACHINE=$(cat /etc/hostname)
#DATE=$(date -Iminutes) #FOR MORE DETAILS
DATE=$(date -I) #JUST THE DATE
BACKUP_PATH=/root/backup-$MACHINE-$DATE
mkdir -p ${BACKUP_PATH}

function copy_file {
        echo "Copying $1"
        rsync --mkpath -a $i $BACKUP_PATH$i
}

function generate_log {
        echo "Generating the list of manually edited files under pacman purfew"
        echo "#pacman -Qii | awk '/\[modified\]/ {print \$(NF - 1)}'" > $BACKUP_PATH/LOG
        pacman -Qii | awk '/\[modified\]/ {print $(NF - 1)}' >> $BACKUP_PATH/LOG
        echo "Generating the list of files not seen by pacman"
        echo "#find /etc /usr /opt | LC_ALL=C.UTF-8 pacman -Qqo - 2>&1 >&- >/dev/null | cut -d ' ' -f 5- | grep -v -e /usr/lib/module -e /etc/ssl/certs -e /etc/pacman.d/gnupg/ -e pacnew -e /etc/ca-certificates/extracted/ -e hwdb.bin" >> $BACKUP_PATH/LOG
        find /etc /usr /opt | LC_ALL=C.UTF-8 pacman -Qqo - 2>&1 >&- >/dev/null | cut -d ' ' -f 5- | grep -v -e /usr/lib/module -e /etc/ssl/certs -e /etc/pacman.d/gnupg/ -e pacnew -e /etc/ca-certificates/extracted/ -e hwdb.bin >> $BACKUP_PATH/LOG
}

function generate_pkg_list {
        echo "List of explicitly installed packages and their version"
        pacman -Qe > $BACKUP_PATH/pacman-Qe.log
}

generate_log

for i in $(grep -v -e '^$' -e '^#' $BACKUP_PATH/LOG); do copy_file $i; done

generate_pkg_list
echo "Also copying gathering file script, just in case you wonder how these files were created"
rsync --mkpath -a "${BASH_SOURCE[0]}" "$BACKUP_PATH/${BASH_SOURCE[0]}"

echo "You can now rsync $BACKUP_PATH to target machine"
echo "Example: rsync --mkpath -a /root/backup-server02-2024-04-21 user@host:~/backups/ #BE CAREFUL ABOUT THE SLASHES."