Simple Backup Script for Linux Servers
I administer a local development server. I use it to practice my Unix terminal kung-fu, as well as develop some local intranet web applications. I’ve learned a lot from the old box. I’ve written a small bash script that I use to generate a backup of certain directories and compress it as a tarball.
Let’s start off with the final source code…```bash THE_DATE=`date "+%Y-%m-%d"` cd /var/backups mkdir $THE_DATE cd $THE_DATE tar cvzf latest_backup.tar.gz -C / var/www home/alex etc usr/bin ```
First, make sure there is a directory
doesn’t matter if it already exists, just as long as
it’s there. Also, make sure you can run this program as
Setting it up
Make a new file in
/usr/bin, name it whatever you want
(I call mine
wwwbackup). The content of that file is
the source code above.
Save the file, then on the command line, run this command:
sudo chmod +x /usr/bin/yourfilename
That command will make the file executable by the system.
The only line you’re going to want to change is the last line. At the end there are a few directory paths, these are the directories to be included in the backup. Each directory is separated by a space. Make sure you leave the first / and the space after it.
For example, if I wanted to only backup
/var/www the last line would read:
tar cvzf latest_backup.tar.gz -C / var/www
You can run the program by typing
sudo wwwbackup (where
wwwbackup is the name of your file).
If all goes well, you’ll see a list of all the files in the directories you set backing up. The script will create a folder with the current day’s date and place a tarball under that folder with your backup contents.
If you don’t want the script to list all of the files
it’s backing up, remove the letter v from the last line. So it
would start like: