-F option for awk

[Robert Shaw]

When awk'ing something like a passwd file, where the reasonable choice
of field separator is something other than whitespace, how do you 
let a line simply fall through and be printed unchanged?

print; or print $0; don't do the right thing because the lines come
out with spaces as the field separators instead of the character given
to the -F option.

The best I can do at present is a printf. Something like

printf("%s:%s:%s:%s:%s:%s:%s\n",$1,$2,$3,$4,$5,$6,$7);

to get the colon's back out when operating on a passwd-format file, for
instance

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