$ pwgen --capitalize --numerals --symbols --secure -1 20 10
MK9\/w$*P=`|dR%K-'XR
S..xT)NgfTCfU~)iuN1&
SMxyy$u*73i4ZdVC=Na-
}}N$~D_zy(/]^Y7M]h,]
yU@}bR<I)Up~yJ\n"n+0
,phWr/vq`5Q),yg`L`O1
W;OMY,F3;SY|4V5Q<;Y{
//Y~Q[V]K,x_N'es1h,$
!+xqzsxgiC\##>wZ2.6M
I@4~I65Sxxf{wz'5InVx
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/