grep returns a list, which means it reads the entire file/folder of whatever you grep. If the files are big you are just simply running out of physical memory because perl will use all the memory the system has available. In this case you probably do have to rewrite some code to use less memory, such as:
I have discovered a curious phenomenon in GCI. I need some advice from someone far more adept. Is this a bug or potential security weakness?
Context: Redhat 8.0 on xx86 (pentium 3) Apache 2.0, Perl 5.80
Background:
I've been trying to harden a web application which accepts user uploaded... (0 Replies)
I dont know whether this is a common error but it seems my PERL program is running out of buffer memory. Inside a loop I am processing an array (reading elements and displaying in it--note: for every iteration of the loop the WHOLE array is being scanned once--...the array was created by reading a... (5 Replies)
Hi
I'm currently using C++ on a HP-UX 11i system (upgrading some libraries) and am encountering a problem with the process crashing when allocating memory via a call to new (a rather large array of objects are being created).
Is there a way to find out what the sizes of the stack and heap are?... (1 Reply)
Hi,
Is there any known trick that will consume all of my memory and force my machine to swap? I'm scripting a monitor in perl that will alert me when available memory is dangerously low and system is swapping, and I would like to simulate the scenario. I am clueless how to make my system lack... (4 Replies)
I currently have a statistics gathering script i run on my Linux servers. One of the stat i gather is total memory in the machine. The script is all perl with the exception of gathering the memory for that i use the following command:
$ram = (`cat /proc/meminfo | grep "MemTotal" | awk... (1 Reply)
Hi ,
when one of the perl script is being executed i am getting the following
error as out of memory,
when i check memory utilisation it is showing as 60% .
cp utilisation as 11%.
swap is free for 19 gb.
can anyone guide me to sort the above isssue.i want to know the root cause. (2 Replies)
Hi I am working with a 3.0 GB file and running the following script to process it. After running for 15 minutes, the script stops saying Out of memory or Killed.
Can the experts suggest where my code can be improved to save memory?
Thanks in advance.
#! usr/bin/perl
use warnings;
open... (3 Replies)
I wrote a perl program that simultaneously reads in data from 691 tar.gz files using zcat. I can run one instance of the program without any issues and the memory and swap sizes are negligible. However, when I attempt to run more than 1 I start to get fork: resource unavailable messages. Are... (6 Replies)
I am getting a out of memory issue while executing the perl program.
Per version : /opt/acc_perl/lib/site_perl/5.14.2
Read in 54973 total records
Read in 54973 table records from table.
Out of memory!
so the job get failed due to out of memory. need to get rid of the out of memory... (3 Replies)
Discussion started by: ramkumar15
3 Replies
LEARN ABOUT OPENDARWIN
zgrep
ZGREP(1) General Commands Manual ZGREP(1)NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci-
fied, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and
fed to grep.
If zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep uses
it as the grep program to be invoked. For example:
for sh: GREP=fgrep zgrep string files
for csh: (setenv GREP fgrep; zgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)ZGREP(1)