1) Set the crontab to call your script everyday.
2) Your script would then read a file to learn the current count. If count is appropriate, execute your stuff and set count back to 0; else increment count by 1 (or increment by 1 immediately / adjusting test number accordingly). Lastly, write the count variable to the file again.
The following is just off the top of my head, but perhaps gives you the idea...
Hi,
I am trying to schedule a job in linux through the crontab command.My script actually does some text processing and echoes some output.My cron scheduler is working fine,but the output messages(echoes from script) is mailed to my mail account(in unix -/var/local/mail).Is it not possible... (0 Replies)
I have created two scripts to call SQL scripts to do some work. The scripts was successfully executed many times by manual. When I scheduled two scripts in crontab, I gave all necessary parameters. It could start, but couldn't run through. The log file didn't give enough error info. Anyone can help... (10 Replies)
Hi,
we reboot our Linux server yesterday and since then (specialy last night) no job from crontab has run. Any idea ? What should I look for to investigate?
Many thanks. (5 Replies)
Hi experts,
I want to set the crontab for my script which will run every 20 seconds
I think below could be the possible one-
*/3 * * * * /export/home/username/scripts/runing.sh
As my system(SOLARIS 9) is live- i am confused to implement before make sure !!!
I need... (4 Replies)
Hello,
I have to schedule a command to run on every 3 days. Whether the below cron entry will work?
0 3 */3 * * command
Please help me out and thanks in advance! (6 Replies)
Hi,
I have a script which checks to see if an app is running and will restart it if it is not.
For some reason when I run it from the crontab it always says it is not running.
The script is as follows: -
#!/bin/sh
#
# The following script will look for the PID of SickBeard and output... (15 Replies)
Hello all,
I'm trying to write a script to gather and send data and it works just fine at the bash command line, but when executing from CRON, it does not run properly.
My scripting skills are pretty limited and there's probably a better way, but as I said it works at the command line, but... (12 Replies)
I'm trying to get a crontab to run, every Friday at 11am and the problem is that it isn't running at all.
0 11 * * 6 /Users/martinb/Documents/SYSADMIN/Regular-Scripts/Info-And-Backups.sh
Here's a link to a screenshot of my script (I've censored my email address).
Screen Shot 2017 11 03... (3 Replies)
Discussion started by: $shell_Learner
3 Replies
LEARN ABOUT PHP
count
COUNT(3) 1 COUNT(3)count - Count all elements in an array, or something in an objectSYNOPSIS
int count (mixed $array_or_countable, [int $mode = COUNT_NORMAL])
DESCRIPTION
Counts all elements in an array, or something in an object.
For objects, if you have SPL installed, you can hook into count(3) by implementing interface Countable. The interface has exactly one
method, Countable::count, which returns the return value for the count(3) function.
Please see the Array section of the manual for a detailed explanation of how arrays are implemented and used in PHP.
PARAMETERS
o $array_or_countable
- An array or Countable object.
o $mode
- If the optional $mode parameter is set to COUNT_RECURSIVE (or 1), count(3) will recursively count the array. This is particu-
larly useful for counting all the elements of a multidimensional array.
Caution
count(3) can detect recursion to avoid an infinite loop, but will emit an E_WARNING every time it does (in case the array
contains itself more than once) and return a count higher than may be expected.
RETURN VALUES
Returns the number of elements in $array_or_countable. If the parameter is not an array or not an object with implemented Countable inter-
face, 1 will be returned. There is one exception, if $array_or_countable is NULL, 0 will be returned.
Caution
count(3) may return 0 for a variable that isn't set, but it may also return 0 for a variable that has been initialized with an empty
array. Use isset(3) to test if a variable is set.
EXAMPLES
Example #1
count(3) example
<?php
$a[0] = 1;
$a[1] = 3;
$a[2] = 5;
$result = count($a);
// $result == 3
$b[0] = 7;
$b[5] = 9;
$b[10] = 11;
$result = count($b);
// $result == 3
$result = count(null);
// $result == 0
$result = count(false);
// $result == 1
?>
Example #2
Recursive count(3) example
<?php
$food = array('fruits' => array('orange', 'banana', 'apple'),
'veggie' => array('carrot', 'collard', 'pea'));
// recursive count
echo count($food, COUNT_RECURSIVE); // output 8
// normal count
echo count($food); // output 2
?>
SEE ALSO is_array(3), isset(3), strlen(3).
PHP Documentation Group COUNT(3)