Yes, though you wouldn't edit it via crontab -e. You would do crontab -l > filename to save the current cron table into a file, edit/append the file as you please, then put the new one in with crontab < filename
Put some unmistakable identifier into the new line so that you can tell if its there already, as well as remove it just as easily if needed.
hi..
i wolud like to know if itīs possible use the crontab command in my script.
the idea is what the script starts automatically, but i donīt know how to do it.
please, help me....
thanks
jonathan (1 Reply)
I want to add one line to the end of my crontab using a script.
I have tried piping in the editor commands, but I can't get it to work.
crontab -e user << EX
$a
This is the text I want to add.
.
wq
EX
This doesn't work. Is there an easier way to do this? (2 Replies)
I know my question maybe eazy, but it realy cause a problem for me
I have a Perl script to run and get some output, I run this script using perl /moutaz/ciscolog/telnet.pl
I made another script as follow:(/moutaz/ciscolog/script)
#!/bin/bash
perl /moutaz/ciscolog/telnet.pl
cp... (6 Replies)
Hi!
We are on AIX 5.3
I have a script that must be run once every hour.
How do i add this to the crontab?
I know how to access crontab which is, crontab -e.
What do i do after that ? If i have the path to the script?
Thank you!!! (4 Replies)
Hi
I have successfukky created a sh script that runs perfectly well when run. It contains within a pl script that when run through a crontab will not run. Are there restrictions running a pl in cron? (14 Replies)
Hi All,
I am running a script to find the CPU and memory utilization of the server. Script name is atul. When i run this script then it gives the desired output as DATE, CPU and MEMORY utilization....as mentioned below:
$
$ cat atul
A=`date| cut -d" " -f1-4; top -d 1 -n 1 | awk '/^CPU... (5 Replies)
Hi guys
Can someone help me with a crontab script please?
I have to sort the files from /bin and put the first 3 of then (with size and path) in /home/user/bin_size
i write the command:
find /bin/ | xargs ls -lS | awk 'FNR<4{print($5, $9)}' > /home/user/bin_size which is working but when I... (2 Replies)
Hi guys
Can someone help me with a crontab script please?
I have to sort the files from /bin and put the first 3 of then (with size and path) in /home/user/bin_size
i write the command:
find /bin/ | xargs ls -lS | awk 'FNR<4{print($5, $9)}' > /home/user/bin_size
which is working but when... (6 Replies)
Hi guys today i'll bring to you a new problem that i need to execute.
So what i need to do it's create a script that:
conect to some database
logon
run a .sql script
logoff
and close the connection
after that, put this script on the crontab
To set up the crontab it's ok for me, i think... (3 Replies)
Hi All,
I am having the below script to be run from crontab, it it doesnt run.
1 * * * * /home/cobr_ext/test.sh > /home/cobr_ext/temp.txt
when i run i manally it runs without any issues.
Could please help me as to why doesnt it run the script.:( (7 Replies)
Discussion started by: abhi_123
7 Replies
LEARN ABOUT SUNOS
queuedefs
queuedefs(4) File Formats queuedefs(4)NAME
queuedefs - queue description file for at, batch, and cron
SYNOPSIS
/etc/cron.d/queuedefs
DESCRIPTION
The queuedefs file describes the characteristics of the queues managed by cron(1M). Each non-comment line in this file describes one queue.
The format of the lines are as follows:
q.[njobj][nicen][nwaitw]
The fields in this line are:
q The name of the queue. a is the default queue for jobs started by at(1); b is the default queue for jobs started by batch (see
at(1)); c is the default queue for jobs run from a crontab(1) file.
njob The maximum number of jobs that can be run simultaneously in that queue; if more than njob jobs are ready to run, only the first
njob jobs will be run, and the others will be run as jobs that are currently running terminate. The default value is 100.
nice The nice(1) value to give to all jobs in that queue that are not run with a user ID of super-user. The default value is 2.
nwait The number of seconds to wait before rescheduling a job that was deferred because more than njob jobs were running in that job's
queue, or because the system-wide limit of jobs executing has been reached. The default value is 60.
Lines beginning with # are comments, and are ignored.
EXAMPLES
Example 1: A sample file.
#
#
a.4j1n
b.2j2n90w
This file specifies that the a queue, for at jobs, can have up to 4 jobs running simultaneously; those jobs will be run with a nice value
of 1. As no nwait value was given, if a job cannot be run because too many other jobs are running cron will wait 60 seconds before trying
again to run it.
The b queue, for batch(1) jobs, can have up to 2 jobs running simultaneously; those jobs will be run with a nice(1) value of 2. If a job
cannot be run because too many other jobs are running, cron(1M) will wait 90 seconds before trying again to run it. All other queues can
have up to 100 jobs running simultaneously; they will be run with a nice value of 2, and if a job cannot be run because too many other jobs
are running cron will wait 60 seconds before trying again to run it.
FILES
/etc/cron.d/queuedefs queue description file for at, batch, and cron.
SEE ALSO at(1), crontab(1), nice(1), cron(1M)SunOS 5.10 1 Mar 1994 queuedefs(4)