07-05-2006
Cron job at system start up
I want to know if there is a way to make a certain set of programs start in order at system startup with cron or something else i dont know about.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
can you please help me with one problem?
There is some server, there are a lot of AIX applications which run on this server under different UserIDs.
These applications starts via crontab.
From time to time some application doesn't start.
What can this "not-action" be dependent on?
At... (5 Replies)
Discussion started by: Anta
5 Replies
2. HP-UX
Hi Experts,
I'm a SAP Basis, I have a small doubt would request you please help on this...
1. I wold like to copy files from one system to another system?
as per my knowledge "we have to mount the prod filesystem on the quality box and do a copy every day thru crontab script, or do it via... (2 Replies)
Discussion started by: mahantysk
2 Replies
3. Solaris
I run cron in solaris 10 zone. One cron job which syncing files to nfs mounted on container, creates after finishing another cron proccess(/usr/sbin/cron), and after 100 existing cron proccesses next cron job will not start. It's too weird for me, I'm not able to solve this problem. Theoretically... (3 Replies)
Discussion started by: ron76
3 Replies
4. Solaris
I would like to setup a Cron job to check weather X process is running or not. if it is not running then start that X process with a log message....
can any one help writing a script?
thanks (3 Replies)
Discussion started by: chandravadrevu
3 Replies
5. Shell Programming and Scripting
Hi Experts,
I need a script advice to schedule 12 jobs ( SAS Codes execute back ground ).
Algorithem:
1. Script checks first job.
2. Finds first job is done; invoke second job.
3. finds second job is done; invoke third job.
..
Request you to please assist. (3 Replies)
Discussion started by: Jerald Nathan
3 Replies
6. Shell Programming and Scripting
I am trying to get the string containing date - in a specfic format actually, although I think that part is inconsequencial - 1110226^1110226^1110226^1110226^1110226 - through echo or printf or in some other way - created within a cront job and passed as a parameter to a perl script.
Now, I know... (3 Replies)
Discussion started by: v8625
3 Replies
7. UNIX for Dummies Questions & Answers
Hi guys,
How can I specify the start and end time of a cron job. And my start time and end time are specified by minutes. For example, I want to set up a cron runs every 3 minutes from 18:40 to midnight. How can i do this please? Many thanks
Best regards,
Clu (4 Replies)
Discussion started by: clu
4 Replies
8. Solaris
Hi ,
I have removed a cron for particular user , but cron job seems to be running even after the cron entry is removed. The purpose of the cron was to sendmail to user ( it uses mailx utility )
I have restarted cron and sendmail service still user is getting mail alerts from the cron job. And... (4 Replies)
Discussion started by: chidori
4 Replies
9. UNIX for Advanced & Expert Users
I have submitted an autosys job and force start it. Autosys hit the job 4 times to restart but it did not start and finally I terminate the job. Any idea why the job did not start. Below is the code I executed.
1214 missun0ap /export/home/bzn97r/develop/dswi/jil$ sendevent -E FORCE_STARTJOB... (0 Replies)
Discussion started by: jnrohit2k
0 Replies
10. 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
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)