Unix Tip: ECHO LINES TO A BLANK

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3430 - June 30, 2012

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

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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@anandraman.net


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