Schedule tasks under Linux is an powerful procedure which is used by almost everyone, and to do this using program called cron. more about it here .
Procedure :
make a new text file, and enter this line in that text file like the below :-
crontab myfirstjob
Formatting crontab file :-
what this file contains
|
Number
|
Meaning
|
Allowed range
|
|
1
|
Minutes
|
0-59
|
|
2
|
Hours
|
0-23
|
|
3
|
Days
|
1-31
|
|
4
|
Months
|
1-12 OR First 3 letters of the Month name
|
|
5
|
Days of the week
|
0-7 OR First 3 letters of the Day name
|
|
6
|
Name of the program
|
Any program
|
Some useful command can be used with cron :-
Show all the task running under cron.
crontab -l
edit the crontab
crontab -e
Some example from crontab file :-
# Minute Hour Day of Month Month Day of Week Command
# (0-59) (0-23) (1-31) (1-12 or Jan-Dec) (0-6 or Sun-Sat)
0 12 * * * /u01/backup.sh
For more example about crontab press here
Cheers
Osama Mustafa
Technology Geek 