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Operating Systems AIX crontab isn't excuting some commands Post 302283530 by ayman metwally on Tuesday 3rd of February 2009 12:34:34 PM
Old 02-03-2009
crontab isn't excuting some commands

Greetings everybody,

I have an IBM P520 AIX 5.3 server machine and trying to use crontab to periodically excute a script that contains a command belongs to my software (Fast/Tools SCADA software)

I added the following line after using crontab -e
Code:
01 * * * * /mypath/myscript

I have two cases:

A) if "myscript" conatins standard SHELL commands like:
Code:
ls > /home/ls.log

In this case, it runs as excepected.


B) if "myscript" contains my application command, it doesn't run at all!
please note that this command in "myscript" file is runnig correctly if it's being typed in the KSH directly.

Am I missing somehting?

Thanks in advance
 

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CRONTAB(1)						      General Commands Manual							CRONTAB(1)

NAME
crontab - maintain crontab files for individual users (V3) SYNOPSIS
crontab [ -u user ] file crontab [ -u user ] { -l | -r | -e } DESCRIPTION
Crontab is the program used to install, deinstall or list the tables used to drive the cron(8) daemon in Vixie Cron. Each user can have their own crontab, and though these are files in /var, they are not intended to be edited directly. If the allow file exists, then you must be listed therein in order to be allowed to use this command. If the allow file does not exist but the deny file does exist, then you must not be listed in the deny file in order to use this command. If neither of these files exists, then depending on site-dependent configuration parameters, only the super user will be allowed to use this command, or all users will be able to use this command. If the -u option is given, it specifies the name of the user whose crontab is to be tweaked. If this option is not given, crontab examines "your" crontab, i.e., the crontab of the person executing the command. Note that su(8) can confuse crontab and that if you are running inside of su(8) you should always use the -u option for safety's sake. The first form of this command is used to install a new crontab from some named file or standard input if the pseudo-filename ``-'' is given. The -l option causes the current crontab to be displayed on standard output. The -r option causes the current crontab to be removed. The -e option is used to edit the current crontab using the editor specified by the VISUAL or EDITOR environment variables. After you exit from the editor, the modified crontab will be installed automatically. SEE ALSO
crontab(5), cron(8) FILES
/etc/cron.allow /etc/cron.deny STANDARDS
The crontab command conforms to IEEE Std1003.2-1992 (``POSIX''). This new command syntax differs from previous versions of Vixie Cron, as well as from the classic SVR3 syntax. DIAGNOSTICS
A fairly informative usage message appears if you run it with a bad command line. AUTHOR
Paul Vixie <paul@vix.com> 4th Berkeley Distribution 29 December 1993 CRONTAB(1)
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