10 More Discussions You Might Find Interesting
1. AIX
Hello everyone,
I have an AIX 6.1 machine and i experienced a problem with my cron scripts. It appears that somebody renamed a cron script so crontab could not execute it.
Is there a way to put some security on cron scripts so nobody else except root can rename or delete a cron script? Or they... (6 Replies)
Discussion started by: omonoiatis9
6 Replies
2. Solaris
I need to run a script (from cron) that runs a second script.
What worries me is that second script, when run from bash, upon finishing doesn't return to bash unless I press the 'Enter' key.
I presume that's because last command in that script ends with &
Could that be a problem for cron?... (2 Replies)
Discussion started by: orange47
2 Replies
3. Shell Programming and Scripting
Hi Gurus,
I have a test unix server in which currently some unix cronjob are running.
I have written two script one is a shell script in which env variable are there (in that i am exporting those variables).
I have also written a perl script .
when i am running at the shell manually like... (5 Replies)
Discussion started by: sanjay.login
5 Replies
4. Shell Programming and Scripting
hi all, i have scripts executable in manully, but not working in cron. any ideas? thanks a lot?
* * * * * /home/dir/dir/file.sh
#! /bin/sh
alarmPath="/home/dir/monitoringAlarm"
alarmDateTime="$(date +%Y%m%d) $(date +%H%M%S)"
tomcatPID=`pidof /usr/local/jdk1.6.0_13/bin/java`
echo "tomcat... (3 Replies)
Discussion started by: maxlee24
3 Replies
5. Red Hat
hi all, i have scripts executable in manully, but not working in cron. any ideas? thanks a lot?
* * * * * /home/dir/dir/file.sh
#! /bin/sh
alarmPath="/home/dir/monitoringAlarm"
alarmDateTime="$(date +%Y%m%d) $(date +%H%M%S)"
tomcatPID=`pidof /usr/local/jdk1.6.0_13/bin/java`
echo "tomcat... (1 Reply)
Discussion started by: maxlee24
1 Replies
6. Shell Programming and Scripting
Hello All,
I have 3 scripts namingly 1X 2X and 3X.
I have one directory ABC created which contains some 40 sub directories.
I have one input file in the below format.The input file resides in ABC directory.
Inputfile format;
subdirectoryname date
subdirectoryname1 date
subdirectoryname2... (1 Reply)
Discussion started by: RSC1985
1 Replies
7. Shell Programming and Scripting
I would like to run two scripts using cron one immediately after the other. Is it enough to put them one after another in the cron file to run at the same time, or will this cause them to run concurrently? (4 Replies)
Discussion started by: 3210
4 Replies
8. Shell Programming and Scripting
Hi all,
I have set up a cron job which calls another shell script shell script which in turn calls a Java process. The cron tab looks so.
0,30 7-18 * * 1-5 /u01/home/weblogic/brp/bin/checkstatus.sh >> /u01/home/weblogic/logs/checkstatus.log
The checkstatus.sh scripts looks like this.
... (4 Replies)
Discussion started by: sirbrian
4 Replies
9. Shell Programming and Scripting
I have the following cron job in the crontab.
#! /bin/bash
25 15 * * 1-5 /export/home/svittala/scripts/scpt1.sh >/dev/null 2>&1.
The problem that I am facing is - the scpt1.sh can be executed manually. But, it is not executing through CRON. Not sure what's the issue. Any hints?. Thanks.... (5 Replies)
Discussion started by: vskr72
5 Replies
10. UNIX for Dummies Questions & Answers
What are the rules of calling shell scripts in cron.
How do I go about setting up the correct PATHS that calls a script, which then calls another sub script all of which has to retain the orginal PATHS and VARS that I've set up in first script
Confused..
ok
Well Cron calls a script... (3 Replies)
Discussion started by: cfoxwell
3 Replies
cron(8) System Manager's Manual cron(8)
NAME
cron - The system clock daemon
SYNOPSIS
/usr/sbin/cron
DESCRIPTION
The cron daemon runs shell commands at specified dates and times. Commands that are to run according to a regular or periodic schedule are
found within the crontab files. Commands that are to run once only are found within the at files. You submit crontab and at file entries
by using the crontab and at commands. Because the cron process exits only when killed or when the system stops, only one cron daemon
should exist on the system at any given time. Normally, you start the cron daemon from within a run command file.
During process initialization and when cron detects a change, it examines the crontab and at files. This strategy reduces the overhead of
checking for new or changed files at regularly scheduled intervals. The cron command creates a log of its activities. The cron daemon
must be started from the system startup scripts because it must begin execution without a login user ID set. The cron daemon starts each
job with the following process attributes stored with the job by the invoking process: Login user ID Effective and real user IDs Effective
and real group IDs Supplementary groups
It also establishes the following attributes from the authentication profile of the account associated with the login user ID of the invok-
ing process: Audit control and disposition masks Kernel authorizations
DIAGNOSTICS
The at and batch programs will refuse to accept jobs submitted from processes whose login user ID is different from the real user ID.
FILES
Specifies the command path. Main cron directory Directory containing the crontab files. List of allowed users. List of denied users His-
tory information for cron Queue description file for at, batch, and cron
RELATED INFORMATION
Commands: at(1), crontab(1), rc0(8), rc2(8), rc3(8)
Files: queuedefs(4) delim off
cron(8)
