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Full Discussion: Grep not working - special characters??
Top Forums Shell Programming and Scripting Grep not working - special characters?? Post 302220187 by gugs on Thursday 31st of July 2008 05:13:17 AM
Old 07-31-2008
Grep not working - special characters??
I have a file that I am processing with a while loop from, in come cases the grep/sed command (strings record | grep “errorDetail” | sed 's&*errorDetail\(.*)\(/errorDetail\).*&\1&') works and produces the data I am after and in some it does not. I have inspected the data within the failing records, they definitely contain the 'errorDetail' field that I am after. I am of a strong suspicion that some of the records contain some characters that the grep does not like. However, I do not know which chars. It may be some binary character that is causing the problem. When I put each record thorugh s/[!@#\$%^&*()]//g' filename, some of the records that were giving me incorrect data give me the errorDetail. However, not all. Any ideas how I can resolve this issue?
Last edited by gugs; 07-31-2008 at 07:19 AM..
 

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LEARN ABOUT X11R4

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  invokes  grep  on  compressed  or  gzipped  files.   These  grep  options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  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 the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

                                                                                                                                          ZGREP(1)
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