Hi,
I'm new to cron and I would like to know if this cron entry looks right.
Every monday to friday, at 9:15 AM execute the script called done_att.sh
Every monday to friday, at 3:15 PM execute the script called start_att.sh
15 09 * * /u54/jobs/done_att.sh
45 15 * *... (1 Reply)
I would like to add a job using cron. I have following questions
- cron jobs are launched using what login-id
e.g. is the script launced using my login-id
- In which directory would the cron jobs be launched ?
- where do the environment variables required in the script being lauched come... (3 Replies)
I have some cron jobs that are taking a might long time. That is because they are screen scrapers and I inserted an extra long pause (10 minutes between screens) to be extra polite and minimize network traffic. I was going to have them run once a day but now I'm thinking once a week.
How do I... (2 Replies)
Before I get a million and one suggestions on all the things that could be wrong with my scripts - let me assure everyone that this is not the issue.
i have a RH EL ES4 server that stopped running all cron jobs except hourly, daily, weekly.
This has affected all users including root. No... (7 Replies)
I have a cron job set up to run a script on my Leopard Server every night. The job is set up as root, and when I run the script manually, it runs fine.
The problem is that it is not doing anything when it runs at night. In the cron log, it says it ran, but did not output the results to the file it... (3 Replies)
Hi,
I am logging into sun solaris unix box as asood user.Then sudo su_appssu
and scheduled my cron jobs.The user appssu is there In the /etc/cron.d/cron.allow . I do not understand why the jobs are not kicking by cron. Do I need to enter directly as appssu ?
Regards
Megh (10 Replies)
I need to process 50 sqlplus scripts which are listed in a text file. I need to develop a shell script that'll read this file and run these sqlplus scripts. At any point of time, the number of sqlplus scripts running shouldn't exceed 6. If any of the sqlplus scripts completes successfully then... (17 Replies)
Hi Experts,
Please help me in this.
I am trying this code on AIX 5.3.
I need list of jobs that executed in last 4 hours.
I have a schedule on this script - cron executes it and sends mail to me for every 2 hours.
I have a Job time and have around 100 jobs those execute daily.
What all i need... (2 Replies)
Hi,
I need to know the jobs running in a server for all users in linux, crontab -l
gives for particular user, how ever I need for all users. I have sudo user access.
Thanks (4 Replies)
Hey,
I have to run a lot of jobs (300) and would like to start at one time only 20 jobs and then after thos jobs are finished the next 20. But how to "ask" for whether the jobs are finished?
actually, my starting scripts looks like that:
for i in jal_*
do
cd ./$i/
... (1 Reply)
Discussion started by: ergy1983
1 Replies
LEARN ABOUT LINUX
truncate
TRUNCATE(1) User Commands TRUNCATE(1)NAME
truncate - shrink or extend the size of a file to the specified size
SYNOPSIS
truncate OPTION... FILE...
DESCRIPTION
Shrink or extend the size of each FILE to the specified size
A FILE argument that does not exist is created.
If a FILE is larger than the specified size, the extra data is lost. If a FILE is shorter, it is extended and the extended part (hole)
reads as zero bytes.
Mandatory arguments to long options are mandatory for short options too.
-c, --no-create
do not create any files
-o, --io-blocks
treat SIZE as number of IO blocks instead of bytes
-r, --reference=FILE
use this FILE's size
-s, --size=SIZE
use this SIZE
--help display this help and exit
--version
output version information and exit
SIZE may be (or may be an integer optionally followed by) one of following: KB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T,
P, E, Z, Y.
SIZE may also be prefixed by one of the following modifying characters: `+' extend by, `-' reduce by, `<' at most, `>' at least, `/' round
down to multiple of, `%' round up to multiple of.
Note that the -r and -s options are mutually exclusive.
AUTHOR
Written by Padraig Brady.
REPORTING BUGS
Report truncate bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report truncate translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO dd(1), truncate(2), ftruncate(2)
The full documentation for truncate is maintained as a Texinfo manual. If the info and truncate programs are properly installed at your
site, the command
info coreutils 'truncate invocation'
should give you access to the complete manual.
GNU coreutils 8.5 February 2011 TRUNCATE(1)