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Top Forums UNIX for Dummies Questions & Answers rm core files and pattern matching Post 302247218 by littleIdiot on Wednesday 15th of October 2008 07:42:07 AM
Old 10-15-2008
rm core files and pattern matching

Hi,

I am trying to delete a load of core files, but make sure I only delete core files. The system I am using has many files with core in the name, so I obviously can not simply search for "core".

I have tried using the 'find' command with pattern matching via [0-9], and know that his is the way forward. However, I can not work out how to ensure there are no alphabetic characters in the file extension.

So far I have the following:
Code:
find ./ -type f -name "core.[0-9]*" -exec rm -f {} \;

However, this will still delete files called "core.1a". Please do not question why anyone would call I file this - it just might be the case, and I have to ensure I avoid these files.

So I need a regular expression that will find:
files
starting with "core."
with an extension of one or more numbers
without an alphabetic lower or uppercase character in the extension

Must be a pretty standard cron job set up an many systems I imagine?
 

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gcore(1)							   User Commands							  gcore(1)

NAME
gcore - get core images of running processes SYNOPSIS
gcore [-pgF] [-o filename] [-c content] process-id... DESCRIPTION
The gcore utility creates a core image of each specified process. By default, the name of the core image file for the process whose process ID is process-id will be core.process-id. OPTIONS
The following options are supported: -c content Produces core image files with the specified content. The content description uses the same tokens as in coreadm(1M). The -c option does not apply to cores produced due to the -p or -g flags. -F Force. Grabs the target process even if another process has control. -g Produces core image files in the global core file repository with the global content as configured by coreadm(1M). The com- mand will fail if the user does not have permissions to the global core file repository. -o filename Substitutes filename in place of core as the first part of the name of the core image files. filename can contain the same tokens to be expanded as the paths in coreadm(1M). -p Produces a core image file in the process-specific location with the process-specific content for each process as config- ured by coreadm(1M). The command will fail if the user does not have permissions to the per-process core file repository. OPERANDS
The following operand is supported: process-id process ID EXIT STATUS
The following exit values are returned: 0 On success. non-zero On failure, such as non-existent process ID. FILES
core.process-id core images ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWtoo | +-----------------------------+-----------------------------+ |Interface Stability |See below. | +-----------------------------+-----------------------------+ Command Syntax is Evolving. Output Format(s) are Unstable. SEE ALSO
kill(1), coreadm(1M), setrlimit(2), core(4), proc(4), attributes(5) NOTES
gcore is unaffected by the setrlimit(2) system call using the RLIMIT_CORE value. SunOS 5.10 11 Feb 2004 gcore(1)
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