$ pwgen --capitalize --numerals --symbols --secure -1 20 10
o[.h,UJSe*rE$C4j^?$"
XX|iF/mB"'}5(]BHhFdu
&N?^5h"G}Vn#PYZ+N)[T
x,S_iyH-k4y/mh_Om=`8
L%b%4y'|j~iN}.Z;^!&X
qZ&aG73q.zp1O3Ws3Fl/
u!Yi3F?wOH6B8%#9+4=F
G)|o1x>"@jRt5#cjq#=)
C_kIJj0V=Ns`<Prd_:*S
7:JnR%ItMu4FX+B~6)2i
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/