pwgen secure password generator

options: length: capitalize: numerals: symbols: secure: ambiguous: no-vowels: amount: 
$ pwgen -C --capitalize --numerals 16 32


ainai4Xohdeiboon reizu3eu3ahmoh1E dei7ahCh6ieThu7t tooH5ohtheich0Ah
oasheizeeth7ie9U quaeYaik1iequoow sae7Ao2eig5azeeN ak1ooghok5poe2Ah
ieM3eeph5neephai ahFeel4reic0jah8 Ku7pe4ca4Aighu8m OhDaetogheigom8e
uPa7Tieneiphaigh heo1Qua4ahsoquoo eigoo2ziePhoi1ph naefeePh9eophuaj
ooH3athae3aniu5i ahje4eeGhiepewoh vahGieRix8voo8Ch Lie4Uchoh7Eemag5
aej7Chaichae4moh hohphei9Vahhuase rie0iBa2Theivei1 Quoos3vuaNoaKooc
ahl1baf8kooGoo5n uBaipee1Eithush2 Ailah5zee3cheawu eeCho4Quaechahth
aiGhoh0Ohtuj5bo8 biFeeg4ficei5too eiCei6oocaiHoo9o aik2Ugeephee2rei




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
  -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/