PHPLinux scheduled task settings

PHPLinux scheduled task settings 1. crontab cannot be saved

Run select-editor to select the second nano... Then run crontab-e to write and exit the program according to the following prompt ^ O and ^ X. Or select 3 and use vim to edit it.

Configuration steps:

1. the PHP interpreter must be compiled and installed in Linux. after installation, copy the $ {PHP}/bin/php file under the installation directory

/Usr/bin/, and use chmod + x./php to add executable permissions to it. OK,

Then enter php-q *. php in the linux command line.

Execute a php program to verify whether the interpreter works properly

2. publish the php file: publish the compiled php program to the apache Publishing Directory, for example,/var/www/html.

Add permission: chmod + x/var/www/html/*. php

3. create a scheduled task:

(1) start the linux Scheduled service: service crond start

(2) view the current scheduled task: crontab-l

(3) add a new scheduled task: crontab-e

Edit in the opened file:

*/2 *****/usr/bin/php-f/var/www/html/*. php

Indicates that the/var/www/html/*. php file is executed every 2 minutes.

* 23 ***/usr/bin/php-f/var/www/222.com/www/ipphone/timingcall.php

Executed 60 times from

01 23 ***/usr/bin/php-f/var/www/222.com/www/ipphone/timingcall.php

Execute at PM. execute once in total

(Note:-f is very important and cannot be changed to-q)

4. verify whether the crontab file exists

If crontab-e fails, modify the command in the user file in/var/spool/cron/crontabs.

To verify whether your crontab file exists, use the ls-l command in the/var/spool/cron/crontabs directory.

* Ls indicates that the ls command is executed every 5th minutes of an hour.

30 5 *** ls specifies to execute the ls command at every day

30 7 8 ** ls: specify to execute the ls command at on the 8 th of every month.

30 5 8 6 * ls specifies to execute the ls command at on January 1, June 8 each year.

30 6 ** 0 ls specify to execute the ls command at every Sunday [Note: 0 indicates Sunday, 1 indicates Monday,

Similarly, sun represents Sunday, mon represents Monday, and so on.]

30, 20 ** ls: execute the ls command at on the 10th and 20th of every month [note: "," is used to connect multiple discontinuous periods]

25 8-11 *** ls execute the ls command 25th minutes at every day [note: "-" is used to connect consecutive periods]

*/15 * ls: execute the ls command every 15 minutes [that is, execute the ls command every hour for 0th 15 30 45 60 minutes]

30 6 */10 ** ls: execute the ls command at every 10 days. ]

Run all executable files in the/etc/cron. daily directory as root at every day.

50 7 * root run-parts/etc/cron. daily [Note: run-parts parameter indicates that all executable files in the following directory are executed. ]