diff options
author | Igor Pashev <pashev.igor@gmail.com> | 2012-06-04 01:35:42 +0000 |
---|---|---|
committer | Igor Pashev <pashev.igor@gmail.com> | 2012-06-04 01:35:42 +0000 |
commit | 6c1662a897fd34b5b0b0174ab83552b016d05e8d (patch) | |
tree | 0b620ad69aa7498e5cd3bd7efc5afd90669d3016 /man/passwd.5 | |
download | shadow-upstream/4.1.5.tar.gz |
Imported Upstream version 4.1.5upstream/4.1.5
Diffstat (limited to 'man/passwd.5')
-rw-r--r-- | man/passwd.5 | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/man/passwd.5 b/man/passwd.5 new file mode 100644 index 0000000..0ec0b88 --- /dev/null +++ b/man/passwd.5 @@ -0,0 +1,172 @@ +'\" t +.\" Title: passwd +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/> +.\" Date: 02/12/2012 +.\" Manual: File Formats and Conversions +.\" Source: shadow-utils 4.1.5 +.\" Language: English +.\" +.TH "PASSWD" "5" "02/12/2012" "shadow\-utils 4\&.1\&.5" "File Formats and Conversions" +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +passwd \- the password file +.SH "DESCRIPTION" +.PP + +/etc/passwd +contains one line for each user account, with seven fields delimited by colons (\(lq:\(rq)\&. These fields are: +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +login name +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +optional encrypted password +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +numerical user ID +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +numerical group ID +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +user name or comment field +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +user home directory +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +optional user command interpreter +.RE +.PP +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 +\fIany\fR +access at all if the +\fIpassword\fR +field is blank\&. If the +\fIpassword\fR +field is a lower\-case +\(lqx\(rq, then the encrypted password is actually stored in the +\fBshadow\fR(5) +file instead; there +\fImust\fR +be a corresponding line in the +/etc/shadow +file, or else the user account is invalid\&. If the +\fIpassword\fR +field is any other string, then it will be treated as an encrypted password, as specified by +\fBcrypt\fR(3)\&. +.PP +The comment field is used by various system utilities, such as +\fBfinger\fR(1)\&. +.PP +The home directory field provides the name of the initial working directory\&. The +\fBlogin\fR +program uses this information to set the value of the +\fB$HOME\fR +environmental variable\&. +.PP +The command interpreter field provides the name of the user\*(Aqs command language interpreter, or the name of the initial program to execute\&. The +\fBlogin\fR +program uses this information to set the value of the +\fB$SHELL\fR +environmental variable\&. If this field is empty, it defaults to the value +/bin/sh\&. +.SH "FILES" +.PP +/etc/passwd +.RS 4 +User account information\&. +.RE +.PP +/etc/shadow +.RS 4 +optional encrypted password file +.RE +.PP +/etc/passwd\- +.RS 4 +Backup file for /etc/passwd\&. +.sp +Note that this file is used by the tools of the shadow toolsuite, but not by all user and password management tools\&. +.RE +.SH "SEE ALSO" +.PP + +\fBcrypt\fR(3), +\fBgetent\fR(1), +\fBgetpwnam\fR(3), +\fBlogin\fR(1), +\fBpasswd\fR(1), +\fBpwck\fR(8), +\fBpwconv\fR(8), +\fBpwunconv\fR(8), +\fBshadow\fR(5), +\fBsu\fR(1), +\fBsulogin\fR(8)\&. |