Issue:Python script was working fine from command line not from crontab
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Reason: Environment variables are not set in cron
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#Redirect the environment variables of the user to a file.
Code:
$env > /home/user1/.env_file
$vi /home/user1/.env_file
#type "export" each variable mentioned over there.
export HOME LD_LIBRARYPATH
$vi myscript.sh
#Add the following line
source ~/.env_file
-------------
#script details
--------------
I created a file in /u01/oradata directory as cronjb.ksh which contains following script
30 12 * * * /export/home/oracle/u01/oradata/rman.ksh
'/export/home/oracle' is my root directory. I then moved cronjb.ksh file to my '/export/home/oracle' directory. i typed crontab cronjb.ksh. However my... (8 Replies)
Hello.
I'd like to know how to make a simple restarter using cron. I made something like this:
"* * * * * root home/..(full path)/file"
But it doesn't work. How can I do that or how to make restarter of the application in other way? (1 Reply)
I am trying to schedule a job via cronjob. Not sure what the problem is. below is my script and the error.
45 10 * * * /u01/app/oracle/jpark/sched_exp_mis.sh
Error received.
Your "cron" job on tama
/u01/app/oracle/jpark/sched_exp_mis.sh
produced the following output:
... (19 Replies)
Hi All , I have a cron jobs
that is not working while put inside cron.
But on executing from manually, it works fine,
Pl anyone find if there is anything wrong in the script.
30 22 * * 1-5 cd /home/ab90737/introscope/util/bin; ./batchgenerateReport.pl ../config/reps.config >... (1 Reply)
I have created user and set timezone different from root user timezone in .bash_profile of user using TZ command,
i have created cronjob for user using crontab -e, my concern is that job schedule in cronjob must executive as per timezone of user , but i am getting that job schedule in cron of user... (6 Replies)
Hi,
I am trying to run a script through crontab but it doesn't run. The script sends an email of the logfile created.When I reun through command line it works perfectly but doesn't send any email through cron. There are othe jobs in cron wich runs perfectly.
Please let me know if I am doing... (3 Replies)
I have a shell script that I have scheduled using cron using a command:
0 10 * * * /directory/Script.sh > /directory/log/output.log
The script is scheduled to run at 10 AM everyday. The script executes but produces output files only with headers, no content is there.
The script produces... (11 Replies)
Hi;
Here is the output from crontab -l:
2,7,12,17,22,27,32,37,42,47,52,57 * * * * /var/tmp/gcsw/jmap_samples/jmap_script.sh > /var/tmp/gcsw/jmap_samples/histo_`date '+%Y%m%d%H%M'`.txtWhen I manually run the line: /var/tmp/gcsw/jmap_samples/jmap_script.sh >... (2 Replies)
Hi,
Can anyone help me on my PHP cron not working, but when i do the manual it work.
# manual run working
/usr/local/bin/php /root/dev/test.php
# crontab not working
55 8 * * * /usr/local/bin/php /root/dev/test.php
Thank in advances
Regards,
FSPalero
Please use CODE tags as... (2 Replies)
Discussion started by: fspalero
2 Replies
LEARN ABOUT LINUX
crontab
CRONTAB(1) General Commands Manual CRONTAB(1)NAME
crontab - maintain crontab files for individual users (Vixie Cron)
SYNOPSIS
crontab [ -u user ] file
crontab [ -u user ] [ -i ] { -e | -l | -r }
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/spool/cron/crontabs, they are not intended to be edited directly.
If the /etc/cron.allow file exists, then you must be listed (one user per line) therein in order to be allowed to use this command. If the
/etc/cron.allow file does not exist but the /etc/cron.deny file does exist, then you must not be listed in the /etc/cron.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 both files exist then /etc/cron.allow takes precedence. Which means that /etc/cron.deny is not considered and your user must be listed
in /etc/cron.allow in order to be able to use the crontab.
Regardless of the existance of any of these files, the root administrative user is always allowed to setup a crontab. For standard Debian
systems, all users may use this command.
If the -u option is given, it specifies the name of the user whose crontab is to be used (when listing) or modified (when editing). 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. See the note under DEBIAN SPECIFIC below.
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. If neither of the environment variables is defined, then the default
editor /usr/bin/editor is used.
The -i option modifies the -r option to prompt the user for a 'y/Y' response before actually removing the crontab.
DEBIAN SPECIFIC
The "out-of-the-box" behaviour for crontab -l is to display the three line "DO NOT EDIT THIS FILE" header that is placed at the beginning
of the crontab when it is installed. The problem is that it makes the sequence
crontab -l | crontab -
non-idempotent -- you keep adding copies of the header. This causes pain to scripts that use sed to edit a crontab. Therefore, the default
behaviour of the -l option has been changed to not output such header. You may obtain the original behaviour by setting the environment
variable CRONTAB_NOHEADER to 'N', which will cause the crontab -l command to emit the extraneous header.
SEE ALSO crontab(5), cron(8)FILES
/etc/cron.allow
/etc/cron.deny
/var/spool/cron/crontabs
There is one file for each user's crontab under the /var/spool/cron/crontabs directory. Users are not allowed to edit the files under that
directory directly to ensure that only users allowed by the system to run periodic tasks can add them, and only syntactically correct
crontabs will be written there. This is enforced by having the directory writable only by the crontab group and configuring crontab com-
mand with the setgid bid set for that specific group.
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.
cron requires that each entry in a crontab end in a newline character. If the last entry in a crontab is missing the newline, cron will
consider the crontab (at least partially) broken and refuse to install it.
AUTHOR
Paul Vixie <paul@vix.com>
4th Berkeley Distribution 19 April 2010 CRONTAB(1)