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Pipe binary file matches grep results to file

 
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Old 01-23-2012
Pipe binary file matches grep results to file
I am using grep to match a pattern, but the output is strange.

Code:
$ grep -r -o "pattern" *

Gives me:
Code:
Binary file foo1 matches
Binary file foo2 matches
Binary file foo3 matches

To find the lines before/after, I then have to use the following on each file:
Code:
$ strings foo1 | grep -A1 -B1 "pattern"

How can I recursively perform this operation with strings? Or, is there an alternative?
 
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LEARN ABOUT POSIX

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)