Keep retrying some job till it executes successfully

carry-out-job-until-complete.sh

#!/bin/bash
# Keep retrying some job till it executes successfully
#
# I primarily use this script to download files from servers
# that break the connection after certain minutes. Combining
# this with aria2c makes a really awesome sure-fire way to
# download your files.
#

carryOutJob()
{
    DONE=30
    job="$1"
    until [ $DONE -eq 0 ]; do
        echo "starting: $job"
        $job
        DONE=$(echo $?)
        # You may add some sleep over here
    done
}


E_BADARGS=65
echo
if [ $# -ne 1 ]
then
    echo "Usage: $0 {job}"
    exit $E_BADARGS
fi

carryOutJob "$1"