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Full Discussion: Making wtmp files readable one at a time
Top Forums Shell Programming and Scripting Making wtmp files readable one at a time Post 302599678 by Stryfe16 on Friday 17th of February 2012 10:18:33 PM
Old 02-17-2012
Quote:
Originally Posted by methyl
I guess you mean something like this:


Code:
cd /directory
ls -1t wtmp-* 2>/dev/null | while read filename
do
        last -f "${filename}" > "${filename}".txt
        grep -l "string" "${filename}".txt | while read found
        do
                 echo "found ${string} in ${filename}"
                 grep "${string}" "${filename}"
        done
done

Thank you kindly for the try but it didn't work. There's no way to simply change the wtmp files into readable files? If I can get them readable I can move on from that point. I just need to have them cat-able basically. If not, I'm thinking I may simply have to try another approach to this problem. Again thank you very much for the feedback.
 

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LEARN ABOUT OPENDARWIN

bzfgrep

BZGREP(1)						      General Commands Manual							 BZGREP(1)

NAME

       bzgrep, bzfgrep, bzegrep - search possibly bzip2 compressed files for a regular expression

SYNOPSIS

       bzgrep [ grep_options ] [ -e ] pattern filename...
       bzegrep [ egrep_options ] [ -e ] pattern filename...
       bzfgrep [ fgrep_options ] [ -e ] pattern filename...

DESCRIPTION

       Bzgrep  is  used to invoke the grep on bzip2-compressed files. All 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  bzgrep  is  invoked as bzegrep or bzfgrep then egrep or fgrep is used instead of grep.  If the GREP environment variable is set, bzgrep
       uses it as the grep program to be invoked. For example:

	   for sh:  GREP=fgrep	bzgrep string files
	   for csh: (setenv GREP fgrep; bzgrep string files)

AUTHOR

       Charles Levert (charles@comm.polymtl.ca). Adapted to bzip2 by Philippe Troin <phil@fifi.org> for Debian GNU/Linux.

SEE ALSO

       grep(1), egrep(1), fgrep(1), bzdiff(1), bzmore(1), bzless(1), bzip2(1)

																	 BZGREP(1)
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