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Sophie

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ghc-6.10.4-1mdv2010.0.i586.rpm

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>System.Posix.User</TITLE
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><TD CLASS="title"
>unix-2.3.2.0: POSIX functionality</TD
><TD CLASS="topbut"
><A HREF="index.html"
>Contents</A
></TD
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>Index</A
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><FONT SIZE="6"
>System.Posix.User</FONT
></TD
><TD ALIGN="right"
><TABLE CLASS="narrow" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="infohead"
>Portability</TD
><TD CLASS="infoval"
>non-portable (requires POSIX)</TD
></TR
><TR
><TD CLASS="infohead"
>Stability</TD
><TD CLASS="infoval"
>provisional</TD
></TR
><TR
><TD CLASS="infohead"
>Maintainer</TD
><TD CLASS="infoval"
>libraries@haskell.org</TD
></TR
></TABLE
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="section4"
><B
>Contents</B
></TD
></TR
><TR
><TD
><DL
><DT
><A HREF="#1"
>User environment
</A
></DT
><DD
><DL
><DT
><A HREF="#2"
>Querying the user environment
</A
></DT
><DD
><DL
><DT
><A HREF="#3"
>The group database
</A
></DT
><DT
><A HREF="#4"
>The user database
</A
></DT
></DL
></DD
><DT
><A HREF="#5"
>Modifying the user environment
</A
></DT
></DL
></DD
></DL
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Description</TD
></TR
><TR
><TD CLASS="doc"
>POSIX user/group support
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Synopsis</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetRealUserID"
>getRealUserID</A
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/System-Posix-Types.html#t%3AUserID"
>UserID</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetRealGroupID"
>getRealGroupID</A
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetEffectiveUserID"
>getEffectiveUserID</A
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/System-Posix-Types.html#t%3AUserID"
>UserID</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetEffectiveGroupID"
>getEffectiveGroupID</A
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetGroups"
>getGroups</A
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> [<A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
>]</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetLoginName"
>getLoginName</A
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetEffectiveUserName"
>getEffectiveUserName</A
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A HREF="#t%3AGroupEntry"
>GroupEntry</A
>  = <A HREF="#v%3AGroupEntry"
>GroupEntry</A
> {<TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="recfield"
><A HREF="#v%3AgroupName"
>groupName</A
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="recfield"
><A HREF="#v%3AgroupPassword"
>groupPassword</A
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="recfield"
><A HREF="#v%3AgroupID"
>groupID</A
> :: <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
></TD
></TR
><TR
><TD CLASS="recfield"
><A HREF="#v%3AgroupMembers"
>groupMembers</A
> :: [<A HREF="../base/Data-Char.html#t%3AString"
>String</A
>]</TD
></TR
></TABLE
>}</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetGroupEntryForID"
>getGroupEntryForID</A
> :: <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="System-Posix-User.html#t%3AGroupEntry"
>GroupEntry</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetGroupEntryForName"
>getGroupEntryForName</A
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="System-Posix-User.html#t%3AGroupEntry"
>GroupEntry</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetAllGroupEntries"
>getAllGroupEntries</A
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> [<A HREF="System-Posix-User.html#t%3AGroupEntry"
>GroupEntry</A
>]</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A HREF="#t%3AUserEntry"
>UserEntry</A
>  = <A HREF="#v%3AUserEntry"
>UserEntry</A
> {<TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="recfield"
><A HREF="#v%3AuserName"
>userName</A
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="recfield"
><A HREF="#v%3AuserPassword"
>userPassword</A
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="recfield"
><A HREF="#v%3AuserID"
>userID</A
> :: <A HREF="../base/System-Posix-Types.html#t%3AUserID"
>UserID</A
></TD
></TR
><TR
><TD CLASS="recfield"
><A HREF="#v%3AuserGroupID"
>userGroupID</A
> :: <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
></TD
></TR
><TR
><TD CLASS="recfield"
><A HREF="#v%3AuserGecos"
>userGecos</A
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="recfield"
><A HREF="#v%3AhomeDirectory"
>homeDirectory</A
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="recfield"
><A HREF="#v%3AuserShell"
>userShell</A
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
></TR
></TABLE
>}</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetUserEntryForID"
>getUserEntryForID</A
> :: <A HREF="../base/System-Posix-Types.html#t%3AUserID"
>UserID</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="System-Posix-User.html#t%3AUserEntry"
>UserEntry</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetUserEntryForName"
>getUserEntryForName</A
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="System-Posix-User.html#t%3AUserEntry"
>UserEntry</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgetAllUserEntries"
>getAllUserEntries</A
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> [<A HREF="System-Posix-User.html#t%3AUserEntry"
>UserEntry</A
>]</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AsetUserID"
>setUserID</A
> :: <A HREF="../base/System-Posix-Types.html#t%3AUserID"
>UserID</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../ghc-prim/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AsetGroupID"
>setGroupID</A
> :: <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../ghc-prim/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
><A NAME="1"
><A NAME="1"
>User environment
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section2"
><A NAME="2"
><A NAME="2"
>Querying the user environment
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getRealUserID"
><A NAME="v%3AgetRealUserID"
></A
></A
><B
>getRealUserID</B
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/System-Posix-Types.html#t%3AUserID"
>UserID</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>getRealUserID</TT
> calls <TT
>getuid</TT
> to obtain the real <TT
>UserID</TT
>
   associated with the current process.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getRealGroupID"
><A NAME="v%3AgetRealGroupID"
></A
></A
><B
>getRealGroupID</B
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>getRealGroupID</TT
> calls <TT
>getgid</TT
> to obtain the real <TT
>GroupID</TT
>
   associated with the current process.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getEffectiveUserID"
><A NAME="v%3AgetEffectiveUserID"
></A
></A
><B
>getEffectiveUserID</B
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/System-Posix-Types.html#t%3AUserID"
>UserID</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>getEffectiveUserID</TT
> calls <TT
>geteuid</TT
> to obtain the effective
   <TT
>UserID</TT
> associated with the current process.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getEffectiveGroupID"
><A NAME="v%3AgetEffectiveGroupID"
></A
></A
><B
>getEffectiveGroupID</B
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>getEffectiveGroupID</TT
> calls <TT
>getegid</TT
> to obtain the effective
   <TT
>GroupID</TT
> associated with the current process.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getGroups"
><A NAME="v%3AgetGroups"
></A
></A
><B
>getGroups</B
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> [<A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
>]</TD
></TR
><TR
><TD CLASS="doc"
><TT
>getGroups</TT
> calls <TT
>getgroups</TT
> to obtain the list of
   supplementary <TT
>GroupID</TT
>s associated with the current process.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getLoginName"
><A NAME="v%3AgetLoginName"
></A
></A
><B
>getLoginName</B
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>getLoginName</TT
> calls <TT
>getlogin</TT
> to obtain the login name
   associated with the current process.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getEffectiveUserName"
><A NAME="v%3AgetEffectiveUserName"
></A
></A
><B
>getEffectiveUserName</B
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>getEffectiveUserName</TT
> gets the name
   associated with the effective <TT
>UserID</TT
> of the process.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section3"
><A NAME="3"
><A NAME="3"
>The group database
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A NAME="t:GroupEntry"
><A NAME="t%3AGroupEntry"
></A
></A
><B
>GroupEntry</B
>  </TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="section4"
>Constructors</TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="5" CELLPADDING="0"
><TR
><TD CLASS="arg"
><A NAME="v:GroupEntry"
><A NAME="v%3AGroupEntry"
></A
></A
><B
>GroupEntry</B
></TD
><TD CLASS="rdoc"
></TD
></TR
><TR
><TD CLASS="body" COLSPAN="2"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="arg"
><A NAME="v:groupName"
><A NAME="v%3AgroupName"
></A
></A
><B
>groupName</B
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="rdoc"
>The name of this group (gr_name)
</TD
></TR
><TR
><TD CLASS="arg"
><A NAME="v:groupPassword"
><A NAME="v%3AgroupPassword"
></A
></A
><B
>groupPassword</B
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="rdoc"
>The password for this group (gr_passwd)
</TD
></TR
><TR
><TD CLASS="arg"
><A NAME="v:groupID"
><A NAME="v%3AgroupID"
></A
></A
><B
>groupID</B
> :: <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
></TD
><TD CLASS="rdoc"
>The unique numeric ID for this group (gr_gid)
</TD
></TR
><TR
><TD CLASS="arg"
><A NAME="v:groupMembers"
><A NAME="v%3AgroupMembers"
></A
></A
><B
>groupMembers</B
> :: [<A HREF="../base/Data-Char.html#t%3AString"
>String</A
>]</TD
><TD CLASS="rdoc"
>A list of zero or more usernames that are members (gr_mem)
</TD
></TR
></TABLE
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:GroupEntry')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:GroupEntry" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="../base/Data-Eq.html#t%3AEq"
>Eq</A
> <A HREF="System-Posix-User.html#t%3AGroupEntry"
>GroupEntry</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="../base/Text-Read.html#t%3ARead"
>Read</A
> <A HREF="System-Posix-User.html#t%3AGroupEntry"
>GroupEntry</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="../base/Text-Show.html#t%3AShow"
>Show</A
> <A HREF="System-Posix-User.html#t%3AGroupEntry"
>GroupEntry</A
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getGroupEntryForID"
><A NAME="v%3AgetGroupEntryForID"
></A
></A
><B
>getGroupEntryForID</B
> :: <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="System-Posix-User.html#t%3AGroupEntry"
>GroupEntry</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>getGroupEntryForID gid</TT
> calls <TT
>getgrgid</TT
> to obtain
   the <TT
>GroupEntry</TT
> information associated with <TT
>GroupID</TT
>
   <TT
>gid</TT
>.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getGroupEntryForName"
><A NAME="v%3AgetGroupEntryForName"
></A
></A
><B
>getGroupEntryForName</B
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="System-Posix-User.html#t%3AGroupEntry"
>GroupEntry</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>getGroupEntryForName name</TT
> calls <TT
>getgrnam</TT
> to obtain
   the <TT
>GroupEntry</TT
> information associated with the group called
   <TT
>name</TT
>.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getAllGroupEntries"
><A NAME="v%3AgetAllGroupEntries"
></A
></A
><B
>getAllGroupEntries</B
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> [<A HREF="System-Posix-User.html#t%3AGroupEntry"
>GroupEntry</A
>]</TD
></TR
><TR
><TD CLASS="doc"
><TT
>getAllGroupEntries</TT
> returns all group entries on the system by
   repeatedly calling <TT
>getgrent</TT
>
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section3"
><A NAME="4"
><A NAME="4"
>The user database
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A NAME="t:UserEntry"
><A NAME="t%3AUserEntry"
></A
></A
><B
>UserEntry</B
>  </TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="section4"
>Constructors</TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="5" CELLPADDING="0"
><TR
><TD CLASS="arg"
><A NAME="v:UserEntry"
><A NAME="v%3AUserEntry"
></A
></A
><B
>UserEntry</B
></TD
><TD CLASS="rdoc"
></TD
></TR
><TR
><TD CLASS="body" COLSPAN="2"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="arg"
><A NAME="v:userName"
><A NAME="v%3AuserName"
></A
></A
><B
>userName</B
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="rdoc"
>Textual name of this user (pw_name)
</TD
></TR
><TR
><TD CLASS="arg"
><A NAME="v:userPassword"
><A NAME="v%3AuserPassword"
></A
></A
><B
>userPassword</B
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="rdoc"
>Password -- may be empty or fake if shadow is in use (pw_passwd)
</TD
></TR
><TR
><TD CLASS="arg"
><A NAME="v:userID"
><A NAME="v%3AuserID"
></A
></A
><B
>userID</B
> :: <A HREF="../base/System-Posix-Types.html#t%3AUserID"
>UserID</A
></TD
><TD CLASS="rdoc"
>Numeric ID for this user (pw_uid)
</TD
></TR
><TR
><TD CLASS="arg"
><A NAME="v:userGroupID"
><A NAME="v%3AuserGroupID"
></A
></A
><B
>userGroupID</B
> :: <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
></TD
><TD CLASS="rdoc"
>Primary group ID (pw_gid)
</TD
></TR
><TR
><TD CLASS="arg"
><A NAME="v:userGecos"
><A NAME="v%3AuserGecos"
></A
></A
><B
>userGecos</B
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="rdoc"
>Usually the real name for the user (pw_gecos)
</TD
></TR
><TR
><TD CLASS="arg"
><A NAME="v:homeDirectory"
><A NAME="v%3AhomeDirectory"
></A
></A
><B
>homeDirectory</B
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="rdoc"
>Home directory (pw_dir)
</TD
></TR
><TR
><TD CLASS="arg"
><A NAME="v:userShell"
><A NAME="v%3AuserShell"
></A
></A
><B
>userShell</B
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="rdoc"
>Default shell (pw_shell)
</TD
></TR
></TABLE
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:UserEntry')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:UserEntry" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="../base/Data-Eq.html#t%3AEq"
>Eq</A
> <A HREF="System-Posix-User.html#t%3AUserEntry"
>UserEntry</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="../base/Text-Read.html#t%3ARead"
>Read</A
> <A HREF="System-Posix-User.html#t%3AUserEntry"
>UserEntry</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="../base/Text-Show.html#t%3AShow"
>Show</A
> <A HREF="System-Posix-User.html#t%3AUserEntry"
>UserEntry</A
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getUserEntryForID"
><A NAME="v%3AgetUserEntryForID"
></A
></A
><B
>getUserEntryForID</B
> :: <A HREF="../base/System-Posix-Types.html#t%3AUserID"
>UserID</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="System-Posix-User.html#t%3AUserEntry"
>UserEntry</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>getUserEntryForID gid</TT
> calls <TT
>getpwuid</TT
> to obtain
   the <TT
>UserEntry</TT
> information associated with <TT
>UserID</TT
>
   <TT
>uid</TT
>.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getUserEntryForName"
><A NAME="v%3AgetUserEntryForName"
></A
></A
><B
>getUserEntryForName</B
> :: <A HREF="../base/Data-Char.html#t%3AString"
>String</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="System-Posix-User.html#t%3AUserEntry"
>UserEntry</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>getUserEntryForName name</TT
> calls <TT
>getpwnam</TT
> to obtain
   the <TT
>UserEntry</TT
> information associated with the user login
   <TT
>name</TT
>.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:getAllUserEntries"
><A NAME="v%3AgetAllUserEntries"
></A
></A
><B
>getAllUserEntries</B
> :: <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> [<A HREF="System-Posix-User.html#t%3AUserEntry"
>UserEntry</A
>]</TD
></TR
><TR
><TD CLASS="doc"
><TT
>getAllUserEntries</TT
> returns all user entries on the system by 
   repeatedly calling <TT
>getpwent</TT
>
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section2"
><A NAME="5"
><A NAME="5"
>Modifying the user environment
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:setUserID"
><A NAME="v%3AsetUserID"
></A
></A
><B
>setUserID</B
> :: <A HREF="../base/System-Posix-Types.html#t%3AUserID"
>UserID</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../ghc-prim/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>setUserID uid</TT
> calls <TT
>setuid</TT
> to set the real, effective, and
   saved set-user-id associated with the current process to <TT
>uid</TT
>.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v:setGroupID"
><A NAME="v%3AsetGroupID"
></A
></A
><B
>setGroupID</B
> :: <A HREF="../base/System-Posix-Types.html#t%3AGroupID"
>GroupID</A
> -&gt; <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> <A HREF="../ghc-prim/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
></TR
><TR
><TD CLASS="doc"
><TT
>setGroupID gid</TT
> calls <TT
>setgid</TT
> to set the real, effective, and
   saved set-group-id associated with the current process to <TT
>gid</TT
>.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="botbar"
>Produced by <A HREF="http://www.haskell.org/haddock/"
>Haddock</A
> version 2.4.2</TD
></TR
></TABLE
></BODY
></HTML
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