[Apache]htpasswd 指令

Synopsis
htpasswd [ -c ] [ -m ] [ -D ] passwdfile username

htpasswd -b [ -c ] [ -m | -d | -p | -s ] [ -D ] passwdfile username password

htpasswd -n [ -m | -d | -s | -p ] username

htpasswd -nb [ -m | -d | -s | -p ] username password


Options
-b
Use batch mode; i.e., get the password from the command line rather than prompting for it. This option should be used with extreme care, since the password is clearly visible on the command line.
-c
Create the passwdfile. If passwdfile already exists, it is rewritten and truncated. This option cannot be combined with the -n option.
-n
Display the results on standard output rather than updating a file. This is useful for generating password records acceptable to Apache for inclusion in non-text data stores. This option changes the syntax of the command line, since the passwdfile argument (usually the first one) is omitted. It cannot be combined with the -c option.
-m
Use MD5 encryption for passwords. On Windows, Netware and TPF, this is the default.
-d
Use crypt() encryption for passwords. The default on all platforms but Windows, Netware and TPF. Though possibly supported by htpasswd on all platforms, it is not supported by the httpd server on Windows, Netware and TPF.
-s
Use SHA encryption for passwords. Facilitates migration from/to Netscape servers using the LDAP Directory Interchange Format (ldif).
-p
Use plaintext passwords. Though htpasswd will support creation on all platforms, the httpd daemon will only accept plain text passwords on Windows, Netware and TPF.
-D
Delete user. If the username exists in the specified htpasswd file, it will be deleted.
passwdfile
Name of the file to contain the user name and password. If -c is given, this file is created if it does not already exist, or rewritten and truncated if it does exist.
username
The username to create or update in passwdfile. If username does not exist in this file, an entry is added. If it does exist, the password is changed.
password
The plaintext password to be encrypted and stored in the file. Only used with the -b flag.

Exit Status
htpasswd returns a zero status ("true") if the username and password have been successfully added or updated in the passwdfile. htpasswd returns 1 if it encounters some problem accessing files, 2 if there was a syntax problem with the command line, 3 if the password was entered interactively and the verification entry didn't match, 4 if its operation was interrupted, 5 if a value is too long (username, filename, password, or final computed record), 6 if the username contains illegal characters (see the Restrictions section), and 7 if the file is not a valid password file.


Examples
htpasswd /usr/local/etc/apache/.htpasswd-users jsmith

Adds or modifies the password for user jsmith. The user is prompted for the password. If executed on a Windows system, the password will be encrypted using the modified Apache MD5 algorithm; otherwise, the system's crypt() routine will be used. If the file does not exist, htpasswd will do nothing except return an error.

htpasswd -c /home/doe/public_html/.htpasswd jane

Creates a new file and stores a record in it for user jane. The user is prompted for the password. If the file exists and cannot be read, or cannot be written, it is not altered and htpasswd will display a message and return an error status.

htpasswd -mb /usr/web/.htpasswd-all jones Pwd4Steve

Encrypts the password from the command line (Pwd4Steve) using the MD5 algorithm, and stores it in the specified file.


摘自:http://httpd.apache.org/docs/2.0/programs/htpasswd.html