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Extract raw URLs from a file

Terminal - Extract raw URLs from a file
egrep -ie "<*HREF=(.*?)>" index.html | awk -F\" '{print $2}' | grep ://
2009-02-05 17:51:14
User: wwest4
Functions: awk egrep grep
-1
Extract raw URLs from a file

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives
egrep -ie "<*HREF=(.*?)>" index.html | cut -d "\"" -f 2 | grep ://
2011-03-29 18:20:50
User: fanfani
Functions: cut egrep grep
3

you can also use cut instead of awk. less powerful but probably faster. ;)

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What others think

This fails if the HREF attribute of the anchor tag used a single-quote instead of a double quote. It also fails if the HREF attribute isn't the first attribute of the tag, or if there are two spaces (or a newline) between the tag and the attribute, and so on. It also can be done much more efficiently with a single command e.g.

perl -ne 'print "$1\n" if m,+]href=["'\''](\w+://[^"'\'']+),i' index.html
Comment by Rhomboid 294 weeks and 6 days ago

sigh, and of course this crappy site mangled the command because it contained angle brackets.

Comment by Rhomboid 294 weeks and 6 days ago

ok, and i guess it would be easy enough to fix the regex to match the RFC, if necessary... aside from saying that efficiency doesn't really matter here, i can't really argue that perl is better suited to the task... you should post your soln if you can figure out how.

Comment by wwest4 294 weeks and 6 days ago

er... can't really argue AGAINST perl being better suited.

Comment by wwest4 294 weeks and 6 days ago

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