Generate an XKCD #936 style 4 word password
potty Aspen seedy curt
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4 random words are better than one obfuscated word http://xkcd.com/936/ Show Sample Output
23shuf -n4 /usr/share/dict/words | tr -d '\n' -
This is what I came up to generate XKCD #936 style four-word password. Since first letter of every word is capitalized it looks a bit more readable to my eyes. Also strips single quotes. And yes - regex is a bit of a kludge, but that's the bes i could think of. Show Sample Output
1shuf -n4 /usr/share/dict/words | sed -e ':a;N;$!ba;s/\n/ /g;s/'\''//g;s/\b\(.\)/\u\1/g;s/ //g' -
So I use OSX and don't have the shuf command. This is what I could come up with. This command assumes /usr/share/dict/words does not surpass 137,817,948 lines and line selection is NOT uniformly random. Show Sample Output
0jot 4 | awk '{ print "wc -l /usr/share/dict/words | awk '"'"'{ print \"echo $[ $RANDOM * $RANDOM % \" $1 \"]\" }'"'"' | bash | awk '"'"'{ print \"sed -n \" $1 \"p /usr/share/dict/words\" }'"'"' | bash" }' | bash | tr -d '\n' | sed 's/$/\n/' -
This does the same thing that the command 'j_melis' submitted, but does it a lot quicker. That command takes 43 seconds to complete on my system, while the command I submitted takes 6 seconds. Show Sample Output
0shuf /usr/share/dict/words |grep "^[^']\{3,5\}$" |head -n4 -
Before running, do: curl -sO http://world.std.com/%7Ereinhold/diceware.wordlist.asc Show Sample Output
0perl -F'\s+' -anE 'push @w,$F[1];END{$r.=splice @w,rand @w,1 for(1..4);say $r}' diceware.wordlist.asc
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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echo $(grep "^[^']\{3,5\}$" /usr/share/dict/words|shuf -n4)Useless use of 'echo'echo $(shuf -n4 /usr/share/dict/words)