04-20-2011
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello,
I have problem in executing a shell script. When the shell script is executed at the shell prompt the script works successfully but when the same script is run as a cron job it fails to execute the files called within the shell script.
I have scheduled the job in my crontab file as
... (6 Replies)
Discussion started by: forumthreads
6 Replies
2. UNIX for Dummies Questions & Answers
My shell script runs fine both as a cron job and when i issue it.
However, I wish to differentiate when it runs as a cron-job so the "echo" statements are not issued (they get mailed to me, which i don't want).
I tried checking $USER but since the cron was created in my user that does not... (5 Replies)
Discussion started by: sentinel
5 Replies
3. Shell Programming and Scripting
I have written a simple bash script that will run a wget command to recursively ftp an entire directories and it's contents.
#!/bin/bash
wget -r -N ftp://user:pass@server//VOL1/dir
If I run from the regular command line it works fine.
root@BUSRV: /media/backup1$ ./gwbu
When I put it in... (1 Reply)
Discussion started by: mgmcelwee
1 Replies
4. UNIX for Advanced & Expert Users
Hi, new to this forum and not sure if this is the right place to post. I'm new to cron jobs and scripts, and I need some help with a script to be used with a cron job. I already have a bot set up at a certain website address and need a script that the cron job will load every day that tells it to... (1 Reply)
Discussion started by: klawless
1 Replies
5. Shell Programming and Scripting
Hey Guys,
i was trying out a shell script which has to remove a file for every 90 mins. this is the code i came up with .
$ crontab -e file1
file1 contains
30 1 * * * * rm -r /folder1/folder2/somefile.txt
Now i need the cron to run for every 90 mins. the problem with this is... (8 Replies)
Discussion started by: Irishboy24
8 Replies
6. UNIX for Dummies Questions & Answers
Hi am newbie for unix shell..
how to create a cron job for my already created shell script.:confused:
Thanks! (1 Reply)
Discussion started by: vidhyaS
1 Replies
7. Shell Programming and Scripting
how to run a script using cron job and send the output as attachment via e-mail using unix. please help me.
how my cron job entry should be?
As of now my cron job entry is to run the script at specific time,
15 03 * * * /path/sample.sh | mail -s "Logs" email_id
In the above entry, what... (8 Replies)
Discussion started by: vidhyaS
8 Replies
8. Shell Programming and Scripting
How do I run bash script using a cron job?
I have tried to just write the path of the script, but that didn't work. (1 Reply)
Discussion started by: locoroco
1 Replies
9. Shell Programming and Scripting
Hi,
1)
If some job supposed to run on 1st of every month at 7 AM
In cron job when we have a blackout on the 1st ( i.e when 1st falls on a sunday ) how can we make the job run the next business day?
2) How can we run a job on 25th of every quarter 7 AM(jan,apr,jul,oct)
And if 25th... (5 Replies)
Discussion started by: System Admin 77
5 Replies
10. Shell Programming and Scripting
Team,
Would like to know what is the best script that will send you an email if cronjob did not run.
Thanks (4 Replies)
Discussion started by: kenshinhimura
4 Replies
CRONTAB(1) General Commands Manual CRONTAB(1)
NAME
crontab - maintain crontab files for individual users (ISC Cron V4.1)
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 ISC 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 cron.allow file exists, then you must be listed therein in order to be allowed to use this command. If the cron.allow file does not
exist but the cron.deny file does exist, then you must not be listed in the cron.deny file in order to use this command. If neither of
these files exists, only the super user will be allowed 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 <vixie@isc.org>
4th Berkeley Distribution 29 December 1993 CRONTAB(1)