Backup to e-mail

This script backup directories /etc/astra and file /usr/bin/astra to email.

install sendEmail

SendEmail is a lightweight, completely command line-based SMTP email delivery program

Centos:

yum install sendemail

Ubuntu:

sudo apt-get install sendemail

Create a script:

#!/bin/bash
MAILTO="my-email@gmail.com"
FROM="astra@server.com"
SMTPSERVER="smtp.gmail.com:587"
SMTPLOGIN="my-email"
SMTPPASS="password"

NOW=$(date +%Y%m%d)
BACKUP="/tmp/astra-$NOW.tar.gz"
tar -zcf $BACKUP /etc/astra /usr/bin/astra

SUBJ="$FROM backup"
BODY="The backup was successfully completed. The backup files are attached in this email"

/usr/bin/sendEmail \
    -f $FROM -t $MAILTO \
    -o message-charset=utf-8 \
    -u $SUBJ -m $BODY -a $BACKUP \
    -s $SMTPSERVER -o tls=yes -xu $SMTPLOGIN -xp $SMTPPASS
rm -f $BACKUP

MAILTO="to email"
SMTPSERVER="smtp server"
SMTPLOGIN="login"
SMTPPASS="password"

Save this script as backup.sh in the directory /opt

If you have 2 factor auth enabled, you need to create an “application password”, then use that instead of your normal password.

Configure cron (Linux task scheduler)

Open the editor with the command

sudo crontab -u root -e

And in the opened file add a line:

40 2 * * * sh /opt/backup.sh > /dev/null

Do not forget to put Enter at the end of the line (to line break!)

Save the file. Now at 2 hours 40 minutes (at night) you will have a backup of Astra in your e-mail