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Top Forums UNIX for Dummies Questions & Answers how to cancel a cronjob if the cronjob still running Post 302446201 by rajamadhavan on Wednesday 18th of August 2010 04:06:29 AM
Old 08-18-2010
Hi,
One way I can think of is to put a check on the script that runs as a part of crontab. Whatever you want to do with the script you do after a check that if any command of similar name is still running. example: lets say if you are running /home/user/script.sh every one minute, then add a check
Code:
ps -ef | grep "script.sh" | grep -v grep

on your script.sh in the beginning

-Raja
 

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script(1)							   User Commands							 script(1)

NAME
script - make record of a terminal session SYNOPSIS
script [-a] [filename] DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the record is saved in the file typescript. See WARNINGS. The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends when the forked shell exits or when Control-d is typed. OPTIONS
The following option is supported: -a Appends the session record to filename, rather than overwriting it. NOTES
script places everything that appears on the screen in filename, including prompts. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a privileged user, that is, root. Be sure that typescript is not a link before running script. SunOS 5.11 30 Jan 2004 script(1)
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