[olug] Unix Tip: ECHO LINES TO A BLANK

[Unix Guru Universe]

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

			      UNIX GURU UNIVERSE 
			         UNIX HOT TIP

			Unix Tip 1998 - June 21, 2003

		    http://www.ugu.com/sui/ugu/show?tip.today

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=


ECHO LINES TO A BLANK


To echo all lines in a 
file upto the first blank 
line use the following:

awk '$0 ~ /^$/ {exit;} {print $0;}' <file_name>

The awk script can be used 
for printing lines upto the 
first occurence of any 
pattern.

Just substitute ^$ with 
the pattern.

I wrote this script to parse 
http server headers.

This tip generously supported by: anand at anandraman.net


--------------------------------------------------------------------------
To Subscribe:    http://www.ugu.com/sui/ugu/show?tip.subscribe
To Unsubscribe:  http://www.ugu.com/sui/ugu/show?tip.unsubscribe
To Submit A Tip: http://www.ugu.com/sui/ugu/show?tip.today

==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX 
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU  ADVISES THAT 
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.

Unix Guru Universe - www.ugu.com - tips at ugu.com - Copyright 1994-2001
==========================================================================