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PASSWD(5) Filformat och konversioner PASSWD(5)

NAMN

passwd - lösenordsfilen

BESKRIVNING

/etc/passwd innehåller en rad för varje användarkonto men sju fält separerade med kolontecken (”:”). Dessa fält är:
 
•inloggningsnamn
 
•valfritt krypterat lösenord
 
•numeriskt användar-id
 
•numeriskt grupp-id
 
•användarnamn eller kommentarsfält
 
•användarens hemkatalog
 
•optional user command interpreter
The encrypted password field may be blank, in which case no password is required to authenticate as the specified login name. However, some applications which read the /etc/passwd file may decide not to permit any access at all if the password field is blank. If the password field is a lower-case ”x”, then the encrypted password is actually stored in the shadow(5) file instead; there must be a corresponding line in the /etc/shadow file, or else the user account is invalid. If the password field is any other string, then it will be treated as an encrypted password, as specified by crypt(3).
The comment field is used by various system utilities, such as finger(1).
The home directory field provides the name of the initial working directory. The login program uses this information to set the value of the $HOME environmental variable.
The command interpreter field provides the name of the user's command language interpreter, or the name of the initial program to execute. The login program uses this information to set the value of the $SHELL environmental variable. If this field is empty, it defaults to the value /bin/sh.

FILER

/etc/passwd
Användarkontoinformation.
/etc/shadow
optional encrypted password file
/etc/passwd-
Backup file for /etc/passwd.
 
Note that this file is used by the tools of the shadow toolsuite, but not by all user and password management tools.

SE OCKSÅ

crypt(3), getent(1), getpwnam(3), login(1), passwd(1), pwck(8), pwconv(8), pwunconv(8), shadow(5), su(1), sulogin(8).
28-07-2018 shadow-utils 4.6