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Operating Systems Linux Red Hat Need help with a shell script for finding a certain pattern from log file Post 302494655 by rockf1bull on Tuesday 8th of February 2011 02:17:59 AM
Old 02-08-2011
Need help with a shell script for finding a certain pattern from log file

Hell Guys,

Being a newbie, I need some help in finding a certain string from a log file of thousands of lines (around 30K lines) and have the output in a separate file.

Below is the file output -
Code:
10.155.65.5 - - [20/Jan/2011:07:41:58 +0100] "POST /cas/login?post=true&service=http://test.domain.ca:8000/psp/ppf88prd/?cmd=login%26languageCd=CAN%26userid=VP1%26pwd=TEST123 HTTP/1.1" 200 888

Now what I am after is I need to separate the output after "&service=" and I need to catch the http:// url for now.

Please note that I need the output in a separate file with each search on a different line (basically neatly arranged).
Now one of the other problems is that the log file also contains some other log entries such as below:
Code:
19.489.50.8 - - [25/Jan/2011:00:00:11 +0100] "GET /cas/themes/testdomains/fondCas.jpg HTTP/1.1" 200 29659
17.538.23.034 - - [25/Jan/2011:00:00:12 +0100] "GET /cas/status.jsp HTTP/1.0" 200 104

And I need not check them since I am looking for log lines that have "&service=" and only wish to catch the url after this pattern on a separate line in a separate file.

I have looked up on a lot of threads doing similar things and lot of very helpful smalls conditions using grep, sed and awk being offered. Though being a novice in all these, I find it almost impossible to tweak them as per my requirement and thus I have posted it here.

Would really appriciate if someone can guide me on this.

Thanks,
Andy


Moderator's Comments:
Mod Comment Please use code tags when posting data and code samples, thank you.

Last edited by Franklin52; 02-08-2011 at 03:38 AM..
 

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CG(1)																	     CG(1)

NAME
cg - Recursively grep for a pattern and store it. SYNOPSIS
cg [ -l ] | [ [ -i ] pattern [ files ] ] DESCRIPTION
cg does a search though text files (usually source code) recursively for a pattern, storing matches and displaying the output in a human- readable fashion. It is intended to give some of the functionaly of AT&T's cscope(1) tool, with the advantages of simplicity and not being language-specific. The script will colorize output if configured as such. It is typically run with a Perl regular expression to search for. The search can be made case insensitive by using the -i option. A list of files may also be specified with an additional argument after the pattern. Put the files pattern in quotes to make it be matched by Perl rather than by the shell. Running the script with no arguments will recall the results of the previous search. After the search, entries found can be edited using the vg(1) script. The -l option shows the last log made. SOME EXAMPLES
cg - alone recalls the previous search results. cg -i pattern - search the default list of files for all files matching the pattern (and case-insensitively). cg pattern '*.c' - search recursively for pattern in all *.c files. This automatically converts '*' to '.*' and '.' to '.' for you and does a Perl pattern match on all files in the tree. cg pattern *.c - search through the shell-expanded list of *.c files, so not done recursively (in other words, only the files your shell pass to the script as arguments). cg -l - show the last log made. COMMAND-LINE OPTIONS -i Do a case-insensitive search. -l Show the last log made. -p Toggle the default pager option. cg has a bulit-in pager function, which can be enabled or disabled by default (in .cgvgrc). If the default is enabled, this option disables the pager; if the default is disabled, this option enables it. -P Force the built-in pager to be disabled. FILES
${HOME}/.cglast Log file of the last search. ${HOME}/.cgvgrc Per-user configuration file (if the defaults are not desireable). ${HOME}/.cgvg/* Log files in $HOSTNAME.shell_pid form with the log of the last search. SEE ALSO
vg(1), perl(1), find(1), grep(1), cscope(1) AUTHOR
cg was written by Joshua Uziel <uzi@uzix.org>. 13 Mar 2002 CG(1)
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