07-13-2011
Nope. Just crontab -e as your user and you should be able to edit your cron table -- unless you're not in the cron group, in which case it will tell you that.
Each user gets their own crontab, so you could crontab -e as a different user and they'd have their own entirely separate list of cron stuff.
To delete it later, crontab -e and just delete that line.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Although there are many threads on this forum regarding cron, none have specifically answered my question. So hopefully someone can shed some light on what I'm doing wrong..
I have a perl script that I want to run in a cron job. Since I've read that cron doesn't have any environments set, I... (3 Replies)
Discussion started by: man
3 Replies
2. UNIX for Dummies Questions & Answers
Hello evreyone,
this is my first post, and to say i'm new to this is an understatement.
I know very little about perl scripts and hope some one can help me.
i'm looking to get a script that a cron job can execute.
what the script needs to to is
1) connect to a mysql database
2) go to a... (2 Replies)
Discussion started by: Exader
2 Replies
3. Shell Programming and Scripting
I have written a simple bash script that will run a wget command to recursively ftp an entire directories and it's contents.
#!/bin/bash
wget -r -N ftp://user:pass@server//VOL1/dir
If I run from the regular command line it works fine.
root@BUSRV: /media/backup1$ ./gwbu
When I put it in... (1 Reply)
Discussion started by: mgmcelwee
1 Replies
4. UNIX for Advanced & Expert Users
Hi, new to this forum and not sure if this is the right place to post. I'm new to cron jobs and scripts, and I need some help with a script to be used with a cron job. I already have a bot set up at a certain website address and need a script that the cron job will load every day that tells it to... (1 Reply)
Discussion started by: klawless
1 Replies
5. Shell Programming and Scripting
Hey Guys,
i was trying out a shell script which has to remove a file for every 90 mins. this is the code i came up with .
$ crontab -e file1
file1 contains
30 1 * * * * rm -r /folder1/folder2/somefile.txt
Now i need the cron to run for every 90 mins. the problem with this is... (8 Replies)
Discussion started by: Irishboy24
8 Replies
6. Shell Programming and Scripting
Hi
A Ksh script is deployed in a server and executed through cronjob.
If one of the line in the middle of the script fails . Are the remaining lines executed ? (3 Replies)
Discussion started by: Sivaswami
3 Replies
7. Shell Programming and Scripting
Hi All,
I beginner in unix, i have no idea how to set the script file using cron job every 5 second. I also want to execute automatically the output to text file.This is my script name countsys.sh and my textfile abc.txt. (6 Replies)
Discussion started by: mastercar
6 Replies
8. UNIX for Dummies Questions & Answers
Hi Team,
When i am running the below query manually it is giving me the right output
i.e.
export PATH=/usr/sbin:/usr/bin:/sbin:/bin:$PATH
ADMIN=abc@abc.com
CPU_HIGH=`sar|awk '{print $9}'|sort -n|head -5|sed -n 5p`
CPU_MAX=`echo "scale=3; 100-$CPU_HIGH" | bc`
CPU_LOW=`sar|awk '{print... (13 Replies)
Discussion started by: Ekamjot
13 Replies
9. UNIX for Dummies Questions & Answers
I would like to run a script, as root, which will eventually set up cron job for a non privilege user. Please advice. (9 Replies)
Discussion started by: atanubanerji
9 Replies
10. HP-UX
I've created a script to copy backup files from an HP-UX 11iv3 system to an NFS share on another machine. I want to schedule the script to run via cron. The script is simply three lines of cp /backups/Backup /shared/Backup. I've saved the script as a .sh file and call it with KSH. Do I need to... (3 Replies)
Discussion started by: jduehmig
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)