Generate a Universally Unique Identifier (UUID)

uuid You'll first need to install the uuid package. Available immediately from apt in Ubuntu, Debian, or other myriad Debian variants. You could always compile it from source as well.
Sample Output

2009-08-14 14:02:37

What Others Think

ruby -e 'z = (1..17).map{"%0.2X"%rand(256)}.join.downcase ; uuid = z[1..8] + "-" + z[9..12] + "-" + z[13..16] + "-" + z[17..33]; puts uuid'
azulinho · 465 weeks ago
that was wrong, this one should do it: ruby -e 'z = (1..17).map{"%0.2X"%rand(256)}.join.downcase ; uuid = z[1..8] + "-" + z[9..12] + "-" + z[13..16] + "-" + z[17..20] + "-" + z[21..32]; puts uuid'
azulinho · 465 weeks ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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