user@server$ crontab -l | grep -i test02
0,5,10,15,20,25,30,35,40,45,50,55 * * * *    [ $(expr $(date +\%s) / 60 \% 125) -eq 0 ] && date >> /tmp/cron-test02.out
user@server$ cat /tmp/cron-test02.out
cat: cannot open /tmp/cron-test02.out
user@server$