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Full Discussion: AIX command help
Top Forums UNIX for Advanced & Expert Users AIX command help Post 302190938 by era on Thursday 1st of May 2008 03:30:31 AM
Old 05-01-2008
What's the nature of the failure? What's the point of grepping for nothing (and really, what's the point of ignoring case in a string which doesn't have case!)? If you want to check if there was any output, even just an empty line, perhaps grep ^ would work on both platforms. But if ls works, the output should not have empty lines, so you could simply grep for a dot (meaning at least one character, any character).

(Just guessing that the problem is with egrep "" failing on Solaris. Perhaps you could check on that and report back.)
 

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LEARN ABOUT SUSE

lzegrep

XZGREP(1)							     XZ Utils								 XZGREP(1)

NAME

       xzgrep - search compressed files for a regular expression

SYNOPSIS

       xzgrep [grep_options] [-e] pattern file...
       xzegrep ...
       xzfgrep ...
       lzgrep ...
       lzegrep ...
       lzfgrep ...

DESCRIPTION

       xzgrep  invokes	grep(1)  on  files  which may be either uncompressed or compressed with xz(1), lzma(1), gzip(1), or bzip2(1).  All options
       specified are passed directly to grep(1).

       If no file is specified, then the standard input is decompressed if necessary and fed  to  grep(1).   When  reading  from  standard  input,
       gzip(1) and bzip2(1) compressed files are not supported.

       If  xzgrep  is  invoked as xzegrep or xzfgrep then egrep(1) or fgrep(1) is used instead of grep(1).  The same applies to names lzgrep, lze-
       grep, and lzfgrep, which are provided for backward compatibility with LZMA Utils.

ENVIRONMENT

       GREP   If the GREP environment variable is set, xzgrep uses it instead of grep(1), egrep(1), or fgrep(1).

SEE ALSO

       grep(1), xz(1), gzip(1), bzip2(1), zgrep(1)

Tukaani 							    2009-07-05								 XZGREP(1)
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