10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
From time to time, I have a cron job that I have to enable/disable/enable/disable. I just want to know if there is any way to insert cron entries or do this to enable/disable bit via a script instead.
It seems 'safer' to do this via a script rather than manual? I think :confused: or is... (10 Replies)
Discussion started by: newbie_01
10 Replies
2. Shell Programming and Scripting
Hi Frnds,
i have a folder test in which files generated daily how to chek the files that are modified on that day as a condition for ex,
if
then echo "i have got something to do with the file"
else
echo" sorry"
fi
i will have more than 3 to 4 files that are modified today. and if... (5 Replies)
Discussion started by: mahesh300182
5 Replies
3. UNIX for Dummies Questions & Answers
Hi all,
We use cron "/usr/rdl/sc/cccron" to execute our jobs.
But sometimes it is being changed. but we are not sure when it is changed.
how could we find when cron is modified.
i checked cron by giving ls -l . but it is showing 2009 year.
ls -l /usr/rdl/sc/cccron
-r-xr-xr-x 1... (2 Replies)
Discussion started by: Divakar
2 Replies
4. UNIX for Advanced & Expert Users
Hi all,
We use cron "/usr/rdl/sc/cccron" to execute our jobs.
But sometimes it is being changed. but we are not sure when it is changed.
how could we find when cron is modified.
i checked cron by giving ls -l . but it is showing 2009 year.
ls -l /usr/rdl/sc/cccron
-r-xr-xr-x 1... (0 Replies)
Discussion started by: Divakar
0 Replies
5. Shell Programming and Scripting
Hi,
I am looking for a shell script with the following.
1. It should check whether a particular file exists in a location
#!/bin/sh
if ;
then
echo "xxx.txt File Exists"
else
echo "File Not Found"
fi
2. If file exists, it should check for the modified date and run a command... (2 Replies)
Discussion started by: karthikeyan_mac
2 Replies
6. Shell Programming and Scripting
How to check what cron is scheduled to run? I don't want to modify anything. Thanks (1 Reply)
Discussion started by: stevensw
1 Replies
7. Shell Programming and Scripting
Hi,
I would like to write a script that checks if a file ('counter') was modified the previous day, if so erase its contents and write 00000000 into it.
For e.g. if the file 'counter' was last modified at 11.30pm on 24th May and the script runs at 12.15am of 25th May, it should erase it's... (1 Reply)
Discussion started by: hegdepras
1 Replies
8. Shell Programming and Scripting
Hi,
I want to modify a filename in AIX by attaching the last modified timestamp. I want the timestamp completely in numerical format (eg:200905081210. yr-2009, mnth - 05, date -08, hr - 12, mins - 10).
For example if the filename is a.log and it was modified on April 6th 2008 at 21.00. I... (16 Replies)
Discussion started by: Ruks
16 Replies
9. UNIX for Dummies Questions & Answers
Made changes to a file using vi editor and saved those changes
now realised that the changes are not required
How can I get the previous version of the file.i.e the one which was there on which I had made changes (3 Replies)
Discussion started by: novice100
3 Replies
10. Shell Programming and Scripting
Hi,
I have a monitoring script that I run, and I would like to automate checking if specific parameter file is modified during the last day or two. How do I do that? (1 Reply)
Discussion started by: nimo
1 Replies
CRON(8) System Manager's Manual CRON(8)
NAME
cron - daemon to execute scheduled commands (Vixie Cron)
SYNOPSIS
cron
DESCRIPTION
Cron should be started from /etc/rc or /etc/rc.local. It will return immediately, so you don't need to start it with '&'.
Cron searches /var/spool/cron for crontab files which are named after accounts in /etc/passwd; crontabs found are loaded into memory. Cron
also searches for /etc/crontab and the files in the /etc/cron.d/ directory, which are in a different format (see crontab(5)). Cron then
wakes up every minute, examining all stored crontabs, checking each command to see if it should be run in the current minute. When execut-
ing commands, any output is mailed to the owner of the crontab (or to the user named in the MAILTO environment variable in the crontab, if
such exists).
Additionally, cron checks each minute to see if its spool directory's modtime (or the modtime on /etc/crontab) has changed, and if it has,
cron will then examine the modtime on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab
file is modified. Note that the Crontab(1) command updates the modtime of the spool directory whenever it changes a crontab.
SEE ALSO
crontab(1), crontab(5)
AUTHOR
Paul Vixie <paul@vix.com>
4th Berkeley Distribution 20 December 1993 CRON(8)
