mkpasswd
TLDR
Generate password hash
$ mkpasswd [password]
Generate with specific method$ mkpasswd -m sha-512 [password]
Generate with salt$ mkpasswd -S [salt] [password]
Generate random password$ mkpasswd -l [16]
List available methods$ mkpasswd -m help
SYNOPSIS
mkpasswd [options] [password]
DESCRIPTION
mkpasswd generates password hashes suitable for /etc/shadow or similar uses. It can use various hashing algorithms and optionally generate random passwords.
The tool is useful for creating encrypted passwords for system configuration files and automated provisioning.
PARAMETERS
-m method
Hash method (sha-512, sha-256, md5, des).-S salt
Specify salt value.-R rounds
SHA rounds count.-l length
Generate random password of length.-s, --stdin
Read password from stdin.-5
Use MD5 (shortcut).-P fd
Read password from file descriptor.
CAVEATS
Different versions have different options. whois package version differs from expect package. Strong methods recommended (sha-512). Avoid storing plaintext passwords.
HISTORY
mkpasswd exists in multiple implementations. The whois package version is common on Debian/Ubuntu, while others may have the expect package version. Both provide password hashing but with different options.
