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Full Discussion: grep a specific line from a file
Top Forums Shell Programming and Scripting grep a specific line from a file Post 302374426 by Max89 on Tuesday 24th of November 2009 11:56:05 AM
Old 11-24-2009
grep a specific line from a file
Is there a way to grep only one line from a file listing name of files?
If I use head -1 it's ok(the first line only)
If I use head -2 it's not good because I have already checked the first line.

I'd like something like this:
Code:
 
while test $i -le $max 
do
  grep "$3" `head -$i temp.txt`  > temp2.txt
  cat temp2.txt
  i=`expr $i + 1`
done

but the head command doesn't give only the i line as I would like.
Thank you in advance.
 

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LEARN ABOUT NETBSD

zegrep

ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME

     zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files

SYNOPSIS

     zgrep [grep-flags] [--] pattern [files ...]

     zegrep [grep-flags] [--] pattern [file ...]

     zfgrep [grep-flags] [--] pattern [file ...]

DESCRIPTION

     zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1).

     The grep-flags and pattern arguments are passed on to grep(1).  If an -e flag is found in the grep-flags, zgrep will not look for a pattern
     argument.

     zegrep calls egrep(1), while zfgrep calls fgrep(1).

EXIT STATUS

     In case of missing arguments or missing pattern, 1 will be returned, otherwise 0.

SEE ALSO

     egrep(1), fgrep(1), grep(1), gzip(1), zcat(1)

AUTHORS

     Thomas Klausner <wiz@NetBSD.org>

BSD
								 December 28, 2003							       BSD
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