About Crontab
Crontab(Cron Table) :
Crontab is is a file which contains the schedule of cron entries to be run and at specified times.
crontab -l : Display crontab file
crontab -e : Edit existing cron file or create if it doesn't already exist.
crontab -r : Remove crontab file
Syntax:
* * * * * command to be executed
First * -------->minutes(0-59)
Second * -------->Hour(0-23)
Third * -------->Day of Month(1-31)
Fourth * -------->Month (1-12)
Fifth * --------->Weeks (0-6) 0=sunday
Ex:
10 20 * * * ls -lrt /home/test ------------------> This command will be executed at 8.10 pm daily
Generate Log file:
10 20 * * * ls -lrt /home/test 2>&1 >> /home/test/list.log
Crontab(Cron Table) :
Crontab is is a file which contains the schedule of cron entries to be run and at specified times.
crontab -l : Display crontab file
crontab -e : Edit existing cron file or create if it doesn't already exist.
crontab -r : Remove crontab file
Syntax:
* * * * * command to be executed
First * -------->minutes(0-59)
Second * -------->Hour(0-23)
Third * -------->Day of Month(1-31)
Fourth * -------->Month (1-12)
Fifth * --------->Weeks (0-6) 0=sunday
Ex:
10 20 * * * ls -lrt /home/test ------------------> This command will be executed at 8.10 pm daily
Generate Log file:
10 20 * * * ls -lrt /home/test 2>&1 >> /home/test/list.log
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