Crontab command won't broadcast
Hello, i'm having trouble running my command with crontab, on Red hat 8 by the way.As root, after doing crontab -e, i've entered a command to broadcast the date in 12 hours format ever 30 minutes, so i did */30 * * * * date +%r | wall. But it doesn't do anything, i think it has to do with the +%r part, it's like it doesn't recognize it. Any tips? Thanks.