Restart rsync on failure via shell script

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It is possible to create shell script to restart rsync, if it exits with failure status (non-zero return value) using:

#!/bin/bash

while [ 1 ]
do
    <rsync-command>
    if [ "$?" = "0" ] ; then
        echo "rsync completed normally"
        exit
    else
        echo "Rsync failed. Retrying..."
        sleep 180
    fi
done

Here replace <rsync-command> with appropriate rsync (or any other shell command that needs to be retried and ends with 0 status on success, non-zero on failure.

Refer:

• https://serverok.in/restart-rsync-on-failure

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