Generate an XKCD #936 style 4 word passphrase (fast)

echo $(shuf -n4 /usr/share/dict/words)
Some snippets posted are slow on big dictionaries, this one is fast.
Sample Output
r?vasser crissait hypnotiserons sursitaire

By: bohwaz
2011-08-30 03:10:06

1 Alternatives + Submit Alt

What Others Think

On Ubuntu you need to install a dictionary, like the wamerican or wbritish. A lot of words have apostrophes and other characters you might not want in your password.
floydwilde · 565 weeks and 5 days ago
To get rid of the apostrophes. Use: echo $(cat /usr/share/dict/words |grep -v "'"|shuf -n4)
d1v3rdown · 565 weeks and 3 days ago
Or: echo $(shuf -n4 /usr/share/dict/words|sed "s/'s//g") D1v3rdown, you could have skipped the cat: echo $(grep -v "'" /usr/share/dict/words |shuf -n4) Also, grepping the whole file triples the time of the shuf, but the sed on the results barely changes it. Of course we're only talking about 0.02-0.06 seconds, but hey!
splante · 565 weeks and 1 day ago
I prefer to get rid of proper names, as well as words involving apostrophes, which makes it a bit longer.
cbbrowne · 564 weeks and 3 days 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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