pwgen secure password generator

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


roo6Au1Iefi5feiw eim7jeich5Eesina ahphuz5Di1Chahde leirie9ohS2MaiTo
ieseiS2chie7XoWo ig5faeVaish1el8o aiJucex4ik1queoS eis5aingieY4IPh2
Ceebeeni7haqu9oo aiQui2lahyohboog aiY9oaZuokohSuN0 QuoohohY9Oquu8ez
fuew4ahtike1Oi5x oht1aachah3IoPha WohTa6Ahchaet4fi Ooy1poi7ieL4Kahh
iShez1Ais8Eeki1P Ooqu2Quaip4foghi hiuZukeig8eaGhie thaikingie9We9aZ
ieZaoS4ahnge2vai uyu5quahlai6Gija aere2waew9wai8Oh ran9uFioChaeHo1c
sheeweiHoh3chaes shieshash4ohc4Th KoodaiFoo7thotoh Ael0zoom9eiRei4a
Kuet2odie5chahqu Aeghaet7biosha8k ooRaenoj1jie8pha RieWaiNgo3Meiph5




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/