Bash Untuk Pemula - Membuat Backup Script

backup.sh

#!/bin/bash
#
# - print date time using command `date`
#     date +%F 
#
# - create tar.gz archive
#     tar czf archive.tar.gz folder

SOURCE_DIR=/usr/local/html
BACKUP_DIR=/data/backup

FILENAME="apps-$(date +%F).tar.gz"

cd ${SOURCE_DIR}
tar czf ${BACKUP_DIR}/${FILENAME} apps

delete.sh

#!/bin/bash
#
# find files modified in the last 7 days and delete them:
#     find root_path -daystart -mtime -7 -delete


DAYS=${1:-7}
BACKUP_DIR=/data/backup

# delete file older than x days
find ${BACKUP_DIR} -type f -mtime +${DAYS} -delete

gen_files.sh

#!/bin/bash
#
# - create file
#     touch filename.tar.gz
#
# - create file, and change last modified time to specific date
#     touch -d 2021-12-10 filename.tar.gz
#
# - print date time using command `date`
#     date +%F 
#
# - print date time, relative to now
#     date +%F --date="1 days ago"

BACKUP_DIR=/data/backup

for x in {1..7}; do
  touch -d $(date +%F --date="${x} days ago") ${BACKUP_DIR}/apps-$(date +%F --date="${x} days ago").tar.gz
done

hello_world.sh

#!/bin/bash

echo "Hello World!"

References.md

• https://quickref.me/bash
• https://devhints.io/bash
• https://learnxinyminutes.com/docs/bash/
• https://devmanual.gentoo.org/tools-reference/bash/index.html