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Obscure sed variable

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# 1  
Old 04-22-2010
Obscure sed variable
Hello,
anyone could me explain what does this line script really do?[

Code:
( sed -e "/^#/d" -e "s/#.*$$//"  /var/tmp/map.cgd ) | ( awk '{for (i = 2; i <= NF; i++) print  $$i, $$0}' )

Moreover... why $$ on second sed instruction?!? What does it means?

Thanks
gb

---------- Post updated at 11:38 AM ---------- Previous update was at 11:09 AM ----------

FOUND : Well... it'is a Makefile, so $$ on sed means EOL and on awk $i and $0

sorry Smilie
# 2  
Old 04-22-2010
The "sed" is removing comment lines (lines starting with #) and the comment portion of lines containing comments (from # to the end of the line).
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