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+<TITLE>setsid</TITLE>
+<body bgcolor="#ffffcc">
+<hr>
+<pre>
+
+
+
+<h3>SETSID(2) System calls SETSID(2)
+</h3>
+
+<h3>NAME
+</h3> setsid - creates a session and sets the process group ID
+
+<h3>SYNOPSIS
+</h3> #include &lt;unistd.h&gt;
+
+ pid_t setsid(void);
+
+<h3>DESCRIPTION
+</h3> setsid() creates a new session if the calling process is
+ not a process group leader. The calling process is the
+ leader of the new session, the process group leader if the
+ new process group, and has no controlling tty. The pro-
+ cess group ID of the calling process is set to the PID of
+ the calling process. The calling process will be the only
+ process in this new process group and in this new session.
+
+<h3>RETURN VALUE
+</h3> The process group ID of the calling process.
+
+<h3>ERRORS
+</h3> On error, -1 will be returned. The only error which can
+ happen is EPERM.
+
+<h3>CONFORMING TO
+</h3> POSIX
+
+</pre>
+<hr>
+<h3>SEE ALSO
+</h3><p>
+<a href=setpgid.htm>setpgid</a>,
+<pre>
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+ Aug 27, 1994 1
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+ </pre>
+<P>
+<hr>
+<p>
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