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Top Forums Shell Programming and Scripting Avoiding 'sh -c' when running ps from CRON Post 302605410 by methyl on Wednesday 7th of March 2012 11:02:50 AM
Old 03-07-2012
Quote:
Why is the 'sh -c' entry getting displayed in ps -ef ?
It's the way cron itself runs a cron line.

Your "grep ksh" is finding the string "ksh" in the name of the script.

If you are trying to prevent two occurances running at the same time, this is better achieved by using a flag file. Beware that the unix "ps" command can sometimes miss processes if the kernel is under stress.
 

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times(1)                                                           User Commands                                                          times(1)

NAME
times - shell built-in function to report time usages of the current shell SYNOPSIS
sh times ksh times DESCRIPTION
sh Print the accumulated user and system times for processes run from the shell. ksh Print the accumulated user and system times for the shell and for processes run from the shell. On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways: 1. Variable assignment lists preceding the command remain in effect when the command completes. 2. I/O redirections are processed after variable assignments. 3. Errors cause a script that contains them to abort. 4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari- able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
ksh(1), sh(1), time(1), attributes(5) SunOS 5.10 15 Apr 1994 times(1)
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