Unix Tip #4446- May 14, 2013


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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;}'

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

NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


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