Add sudo support for npm installer.

[weakish]

No description provided.

[joshgoebel]

What is fgrep? This has to work on a ton of diff platforms. OS X, other BSDs, Linux and its proliferation of distros. Unless there is a big reason to change grep is probably safer, no?

[weakish]

What is fgrep?

Same as grep -F.
It matches fixed string instead of regex.
That is why it is much faster.

This has to work on a ton of diff platforms. OS X, other BSDs, Linux and its proliferation of distros.

fgrep is available on Linux, OS X, BSDs (even on busybox).

grep is probably safer

Since fgrep is just a shortcut to grep -F, they are equally safe.

Anywhere, fgrep is deprecated.
I will change it to grep -F.

[joshgoebel]

I think to be correct her we need to match " [package]" (space in front), based on the output - to avoid false matches, yes? I'd say fix this and we can merge.