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Date: Fri, 15 Jan 2010 22:35:46 +0100
From: Michel Talon <talon@lpthe.jussieu.fr>
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Subject: Re:User error or awk bug?
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awk doesn't use perl or python type regular expressions but much
simpler ones, called "extended". Your constructs are managed by Gnu awk
with the --posix option only. The following achieves what you want in 
a simpler way


niobe% echo "/"|awk 'gsub(/\/+/,"/")'
/
niobe% echo "//"|awk 'gsub(/\/+/,"/")'
/

-- 

Michel TALON