06-07-2005
Thank you very much bhargav and zazzybob! Both are excellent ideas. I wish I were Admin right now so that I could get the GNU grep installed (cheers to you, mate!
), but because that is not an option, I started with your code, bhargav (which was on target indeed!). Here I present my somewhat more robust resultant script (which I call fin):
if [ $# -ne 2 ]
then
echo "\n Syntax is: fin string #lines \n"
exit 1
fi
# search multiple files for string $1
# and print specified #lines $2 before and after
for filename in *.c*
do
a=`grep -n "$1" $filename | cut -d":" -f 1`
if [ $a ]
then
f=$2
((b=a+f))
((c=a-f))
echo "\n \n \n $filename: \n"
sed -n ""$c","$b" p " $filename
fi
done
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LEARN ABOUT OPENDARWIN
bzgrep
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)