$ pwgen --capitalize --numerals --symbols --secure -1 20 10
m+)sc2JRv]zvk>W-H+yA
X=<|]{'|j4},42-ZvSeJ
dj|SP,T$Sdh}(-9p^*LO
.7Ul#%(nVTZ|x#lh+qFp
q;CIEc"sZ,iW1*hy"b*b
$]KB(R.XQ\*S~'7Mo0t$
Bh0!0t_a0}3BxXfLY@Av
]YcM.H;2,Cg-!Ozhmyv#
=nY~Xe3&(o/U-}JQ~zY^
V7Eko"(^Rocc"Lum4G[:
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/