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Full Discussion: How to copy only some lines from very big file?
Top Forums UNIX for Beginners Questions & Answers How to copy only some lines from very big file? Post 302965774 by vidyadhar85 on Tuesday 2nd of February 2016 11:59:08 PM
Old 02-03-2016
If you have latest grep you have below options in grep
Context Line Control
Quote:
-A NUM, --after-context=NUM
Print NUM lines of trailing context after matching lines. Places a line containing a group separator (--) between contiguous
groups of matches. With the -o or --only-matching option, this has no effect and a warning is given.
-B NUM, --before-context=NUM
Print NUM lines of leading context before matching lines. Places a line containing a group separator (--) between contiguous
groups of matches. With the -o or --only-matching option, this has no effect and a warning is given.
-C NUM, -NUM, --context=NUM
Print NUM lines of output context. Places a line containing a group separator (--) between contiguous groups of matches. With
the -o or --only-matching option, this has no effect and a warning is given.
or you can use awk


awk 'c-->0;/pattern/{c=98}' Infile
This User Gave Thanks to vidyadhar85 For This Post:
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sary

SARY(1) 							       Sary								   SARY(1)

NAME

       sary - manual page for sary 1.0.2

SYNOPSIS

       sary [OPTION]... PATTERN FILE

DESCRIPTION

       -c, --count
	      only print a count of occurrences

       -i, --ignore-case
	      ignore case distinctions

       -l, --lexicographical
	      sort in lexicographical order

       -A, --after-context=NUM
	      print NUM lines of trailing context

       -B, --before-context=NUM
	      print NUM lines of leading context

       -C, --context=[NUM],
	      print NUM (default 2) lines of output context

       -s, --start=TAG,
	      print tagged region. set start tag to TAG

       -e, --end=TAG,
	      print tagged region. set end tag to TAG

       -h, --help
	      display this help and exit

COPYRIGHT

       Copyright (C) 2000 Satoru Takabayashi All rights reserved.
       This  is  free  software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by
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sary 1.0.2							   December 2000							   SARY(1)
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