$ pwgen --capitalize --numerals --symbols --secure -1 20 10
G[v*XwA=th>4<V(5}#_j
fq}i'LIn2BQPmj-JoiC0
f9{De`Wi55mw\c<C^Q3>
<c^4J`_!c`I+$o5JSu]'
":x0%x6:*JULx4~lrbT)
:s`6R%!}q{N2W/N#dGV)
1LF3(9W6YB}lK>Ew&,e{
5p;wvABo=~-0B\#88*P-
{T~f=_<?QN#@ks3$p.1y
K0#vQPlS;.'`A-`X:PI&
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/