10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
I need to install the crontab utility in Ubuntu.
Can any one one tell me what exactly is the steps to do it?
Thanks in Advanced (2 Replies)
Discussion started by: diehard
2 Replies
2. Shell Programming and Scripting
Hi,
I have a cron tab file , which executes a particular script in a scheduled time and creates a output file. Since the cron tab file was created by the root , there is no access permission( for the output files) for other users irrespective of the default directory permission on which the... (5 Replies)
Discussion started by: BalajiUthira
5 Replies
3. Shell Programming and Scripting
Hi,
We have a couple of jobs are scheduled in CRONTAB.
Now. I want generate a report for each job how many times ran successful and failed in a 1 month of time period.
is there any way to find in CRONTAB.
Please advise on this. (1 Reply)
Discussion started by: koti_rama
1 Replies
4. Shell Programming and Scripting
Hi
In my Unix server more than 500 cron jobs are scheduled daily and weekly basics.
Now,I would like to know only list of JOBs,which are running only on 14th of every month?
How can i find only which are all jobs will be scheduled only on 14th.
Please tell me the script. (4 Replies)
Discussion started by: koti_rama
4 Replies
5. Shell Programming and Scripting
Hi All,
I am required to make a crontab entry, I have the below requirement:
1. It should execute at 06:15 12:00 and 18:30
2. It should execute every day of the month for all the 30 days
I am going to add the below entry in the crontab file.
15,0,30 6,12,18 * * 0-6 cd... (3 Replies)
Discussion started by: Shazin
3 Replies
6. Solaris
hi guys , i need some help
i want to set cron job for every sunday , of each month so any body plz help or this proble :confused: (1 Reply)
Discussion started by: Kbharat20
1 Replies
7. Shell Programming and Scripting
I have a script for pinging the switches and giving me the report:-
#!/usr/local/bin/perl
#!/bin/ksh
#!/usr/bin
#etc
`source /export/home/chinnigd/.profile`;
@names = `cat switches|cut -f1 -d' '`;
@ip = `cat switches|cut -f2 -d' '`;
$num = @names;
$re ="Empty";
$i = 0;
$flag = 0;
while... (3 Replies)
Discussion started by: chinnigd
3 Replies
8. Shell Programming and Scripting
need help to write crontab
my crontabe file every minute to rsh and check that it is running or not
i want to change it on every 1o minute please help me
example of my crontab
#check if system is running
* * * * * rsh metal3 /users/test/run.server
i want to check that every 10... (2 Replies)
Discussion started by: deepa20
2 Replies
9. UNIX for Dummies Questions & Answers
I have a script that is being called from cron job .
This script further call 3 scripts which runs in the background .
main script ( called from cron )
{
script1 &
script2 &
script3 &
}
How to know when the main script is over ?? (3 Replies)
Discussion started by: rahul123_libra
3 Replies
10. UNIX for Advanced & Expert Users
Hello:
If I want to run a crontab every hour between 9 am to 9pm, will this work
00 09-19 * * * /.../.../../program.sh
If the above does not work, what should it be ??
Thanks, ST2000 (4 Replies)
Discussion started by: ST2000
4 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)