What's the syntax for crontab command and associated command ?

[manish12]

i want to execute a file in every 1min.
what is the exact syntax for crontab command and associated command / file work.
thanx

i not geting it from net and help .

 

[raghda_alsayed]

crontab command ?

open crontab
Crontab –e
-e means Crontab edit
its format is like this

+---------------- minute (0 - 59)
| +------------- hour (0 - 23)
| | +---------- day of month (1 - 31)
| | | +------- month (1 - 12)
| | | | +---- day of week (0 - 7) Sunday=0 or 7
| | | | |
* * * * * command to be executed
Ex:

for ur case
01 * * * * command to be executed