Usage: mkpasswd [OPTIONS]... [PASSWORD [SALT]] Crypts the PASSWORD using crypt(3). -m, --method=TYPE select method TYPE -5 like --method=md5crypt -S, --salt=SALT use the specified SALT -R, --rounds=NUMBER use the specified NUMBER of rounds -P, --password-fd=NUM read the password from file descriptor NUM instead of /dev/tty -s, --stdin like --password-fd=0 -h, --help display this help and exit -V, --version output version information and exit If PASSWORD is missing then it is asked interactively. If no SALT is specified, a random one is generated. If TYPE is 'help', available methods are printed. Report bugs to .