$ pwgen --capitalize --numerals --symbols --secure -1 20 10
|^_lyK<?VOZL8x6jNO5`
^XaBe7TU:4X7osDHwXFL
d63gP)%?}]\fi2m'-i-n
9J1MbwI0e1ikpe[2\"f3
{a-KA&X!F]lW`Q)tli$4
48$)J0M.b,+u`hK~ma*H
VJ,}xu&hY]6F&dmzs-\]
>[$,@C*VAz_Kff_tJi7!
IK[2QntcFiA<%Nd';fAT
W//1M~w.G\`NG</oI#`a
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/