makepasswd 命令

常用示例

说明

makepasswd generates random passwords suitable for user accounts. It uses /dev/urandom for randomness, producing cryptographically suitable output. By default, it generates a single password of reasonable length using letters and digits. The string option customizes the character set for specific password policies. The crypt options produce password hashes suitable for /etc/shadow. MD5 crypt produces hashes starting with $1$, compatible with modern systems. DES crypt is legacy and limited to 8 characters. Batch generation with count is useful for provisioning multiple accounts. Combined with proper length and character requirements, it meets most password policies. For scripting, passwords output one per line. When combined with crypt, both cleartext and hash appear for reference.

参数

--count _N_

Generate N passwords.

--chars _N_

Password length.

--minchars _N_

Minimum length.

--maxchars _N_

Maximum length.

--string _CHARS_

Characters to use.

--crypt

Output DES-crypted password.

--crypt-md5

Output MD5-crypted password.

--clearfrom _FILE_

Read cleartext from file.

--cryptsalt _N_

Salt for crypt.

--randomseed _N_

Seed the random generator with _N_ (use 0 for true randomness, a fixed value for reproducibility).

--rerandom _N_

Re-seed the random generator every _N_ passwords.

--repeatpass _N_

Emit each generated password _N_ times (useful with --crypt to pair cleartext with hash).

--nocrypt

Skip cryptographic hashing and output the cleartext only.

--verbose, --noverbose

Toggle explanatory output.