89 lines
2.6 KiB
Markdown
89 lines
2.6 KiB
Markdown
# Generic Directory Backup Script
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I regularly have directories of files I want to back up in case of disaster. Usually these are files that change often, and I only want to keep recent versions in case I want to revert or recover changes. (Git? git, who?)
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I have used this script over and over as a simple way to archive a directory to a location with a date-stamped filename. It also cleans up after itself by deleting files older than X days. I stick it in CRON and let it run on a schedule and I always have an archive of the last X days of the files in my directory.
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```bash
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#!/usr/bin/env bash
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#===============================================================================
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#
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# FILE: wiki-backup.sh
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# AUTHOR: C Hawley
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# CREATED: 2022-11-30
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# REVISION: 2022-11-30
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#
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#===============================================================================
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set -o nounset # Treat unset variables as an error
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# Backup Source
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bsource=/mnt/data/wiki-data
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# Backup Destination
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bdest=/mnt/backups
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# Backup Filename (no extension)
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bfilename=wiki-data-backup
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# Get today's date
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bdate=$(date +"%Y-%m-%d")
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# Archive directory to the destination
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tar czf $bdest/$bfilename-$bdate.tgz $bsource
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# Prune backups older than 7 days
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find $bdest -maxdepth 1 -type f -iname "$bfilename*.tgz" -mtime +7 -delete
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```
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Here's one with a twist - backing up certain things on certain days of the week:
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```shell
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#!/usr/bin/env bash
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#===================================================================
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#
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# FILE: dockerdata-backup.sh
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# USAGE:
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# DESCRIPTION:
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# OPTIONS:
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# REQUIREMENTS:
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# NOTES:
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# AUTHOR: C Hawley
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# CREATED: 2021-04-01
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# REVISION: 2022-02-02
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#
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#===================================================================
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set -o nounset # Treat unset variables as an error
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# Get today's date
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bdate=$(date +"%Y-%m-%d")
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day=$(date +%u)
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# Backup Source
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bsource=/mnt/docker
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# Backup Destination
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bdest=/mnt/nfs/derry
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# Backup Every Day
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for dir in gitea npm; do
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echo "Archiving $bsource/$dir -> $bdest/$dir-$bdate.tgz"
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tar czf $bdest/$dir-$bdate.tgz $bsource/$dir
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done
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# Backup only on certain day of week
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case $day in
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3) #Wednesday
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for dir in filerun; do
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echo "Archiving $bsource/$dir -> $bdest/$dir-$bdate.tgz"
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tar czf $bdest/$dir-$bdate.tgz $bsource/$dir
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done
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;;
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esac
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# Prune backups older than 3 days
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find $bdest -type f -iname "*.tgz" -mtime +3 -delete
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```
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Change the Backup source, destination and filename variables for your case and the -mtime number to change the retention days. |