passwd - The password file
passwd contains various pieces of information for each user account.
Optional encrypted password
Numerical user ID
Numerical group ID
User name or comment field
User home directory
User command interpreter
The password field may not be filled if shadow passwords have been
enabled. If shadow passwords are being used, the encrypted password
will be found in /etc/shadow. The encryped password consists of 13
characters from the 64 character alphabet a thru z, A thru Z, 0 thru 9,
. and /. Refer to crypt(3) for details on how this string is interpreted.
The comment field is used by various system utilities, such as fin-
ger(1). Three additional values may be present in the comment field.
pri= - set initial value of nice
umask= - set initial value of umask
ulimit= - set initial value of ulimit
These fields are separated from each other and from any other comment
field by a comma.
The home directory field provides the name of the initial working
directory. Login uses this information to set the value of the HOME
The command interpreter field provides the name of the user's command
language interpreter, or the name of the initial program to execute.
Login uses this information to set the value of the SHELL environmental
variable. If this field is empty, it defaults to the value /bin/sh.
/etc/passwd - user account information
login(1), passwd(1), su(1), sulogin(8), shadow(5), pwconv(8), pwun-
Julianne Frances Haugh (email@example.com)
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