$ pwgen --capitalize --numerals --symbols --secure -1 20 10
311$>^(%]!F.<tJGj:xN
g4<|<Z)DKNtP>Q+'z#Nr
sk%&yE_Kd/E9o}:z'`uK
0/|sea&k,6r%%NB{<VSH
4Y[*Ph+!k%6TOMy;e6Cz
U:nQYM%FF=^uEJ*.9>IT
i5C4eEj}zl&fxD^:N^iT
$j6kl1tF!_tp[{V/9,]`
[\,QO=LPS|&;9QH>V6nW
XuY4#a!EmsZ>F$OP?<Jl
Usage: pwgen [ OPTIONS ] [ pw_length ] [ num_pw ]
Options supported by pwgen:
-c or --capitalize
Include at least one capital letter in the password
-A or --no-capitalize
Don't include capital letters in the password
-n or --numerals
Include at least one number in the password
-0 or --no-numerals
Don't include numbers in the password
-y or --symbols
Include at least one special symbol in the password
-r <chars> or --remove-chars=<chars>
Remove characters from the set of characters to generate passwords
-s or --secure
Generate completely random passwords
-B or --ambiguous
Don't include ambiguous characters in the password
-h or --help
Print a help message
-H or --sha1=path/to/file[#seed]
Use sha1 hash of given file as a (not so) random generator
-C
Print the generated passwords in columns
-1
Don't print the generated passwords in columns
-v or --no-vowels
Do not use any vowels so as to avoid accidental nasty words
https://sourceforge.net/projects/pwgen/