Scheduled tasks under linux

1. /opt/test.sh

#!/bin/sh
cd /opt
java -jar test.jar

echo "1">>test.txt

 

// every morning at 6:00

2.crontab -e
0 6 * * * /opt/test.sh

 

ps: If you use ssh remote client connection, you will not see the effect. The effect can only be seen through test.txt.