$ pwgen --capitalize --numerals --symbols --secure -1 20 10
D[;l2a\Mt,J%PoOWS=l"
ktWwQYguBkd)I4^$YyF!
|Qt'mL/(o#PFth1zmv?9
>91PS-+Y~GiBx/9(3XgG
uiUB;UT.[!5G/:A+H14B
4BF[OccM,4D:ozss8-Nj
@/.q7Sw4V=mTZoV4wKNK
RuY<!F\0d/X==0~I+03:
3CG6-[RD9ej98v&~U9JM
n9n2D$i2kkdi>F%3Q@_I
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/