Bash script to backup content on remote server

in-cred-u-lous

Here's a very simple script to grab a file with SCP on a remote server, and then upload it to Sia. I'm running this as a cron job to make regular backups of databases and other dynamic content.

You can define a command in cmd that will run remotely before the file is copied over from the server.

Example - Archive a directory:
cmd="tar cfz ${src}${file} /home/user"

Example - Backup all MySQL databases:
cmd="mysqldump -u USER -pPASSWORD --all-databases | gzip > ${src}${file}"

The Sia wallet needs to be unlocked, and the local machine should be able to login without a password prompt.


# Source host and directory
host="[email protected]"
src="/tmp/"

# Source file
file="backup-$(date +%Y-%m-%d).tar.gz"

# Remote command to run before transferring file (optional)
cmd=""

# Bandwidth limit (Kbits/s)
bw="100"

# END of configurable parameters


# Run remote command
[ ! -z "$cmd" ] && ssh ${host} ${cmd}

# Copy file
scp -l ${bw} $host:${src}${file} /tmp/scpsia

# Upload to Sia
curl -s -X POST --data "source=/tmp/scpsia&nickname=${file}" http://localhost:9980/renter/files/upload -A "Sia-Agent"

Bash script to backup content on remote server browsing