Question

in the linux chrontab suppose i want to schedule a particular task like writing echo "hello" at particular day and time and then i have to change and modify the minute or particular second afterwards how to do it .

please write the commands for the following linux chrontab task

Answer 1

 You can open the file by using command crontab –e this will open the crontab file just paste below line in it 

*/5 * * * * echo "hello" >/dev/null 2>&1

if any error comes then it will throw to dev null so it wont display on terminal to ruin screen

this cronjob will execute Every 5 Minutes, Every Hour, Every Day, Every Month , Every Weekday

cron job will be run at: (5 times displayed)

• 2019-09-10 10:20:00 UTC
• 2019-09-10 10:25:00 UTC
• 2019-09-10 10:30:00 UTC
• 2019-09-10 10:35:00 UTC
• 2019-09-10 10:40:00 UTC

you can generate you own from this site crontab-generator.org

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