$ pwgen --capitalize --numerals --symbols --secure -1 20 10
;7Z!se75^:O[;mr#|}sF
3J`nm8B>=DmR,ujnCf*<
vz[zQ((EPFs?>2)h>J~P
]Ef-_"b9sf#jex4s+8TD
-9L<ku$jbr%^o<3:GMMK
DW!>U8;0H"h7f-3o4DGz
KwbVg'SfFlXohaZvO{N7
'`Z,KMYHL0pYRf4V1&bs
0]"`3~]F}suJ#-mo!Aug
J,L]S2sX`F'd\n|z{zN`
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/