.\" Modified Mon Oct 11 11:11:11 1999 by Andries Brouwer (aeb@cwi.nl)
.\" Modified Wed Nov 10 00:02:26 1999 by Andries Brouwer (aeb@cwi.nl)
.\" Modified Sun May 20 22:17:20 2001 by Andries Brouwer (aeb@cwi.nl)
-.TH PUTENV 3 2007-07-26 "GNU" "Linux Programmer's Manual"
+.TH PUTENV 3 2013-04-19 "GNU" "Linux Programmer's Manual"
.SH NAME
putenv \- change or add an environment variable
.SH SYNOPSIS
.BR putenv ()
function returns zero on success,
or nonzero if an error occurs.
+In the event of an error,
+.I errno
+is set to indicate the cause.
.SH ERRORS
.TP
.B ENOMEM
.BR setenv (3),
.BR unsetenv (3),
.BR environ (7)
+.SH COLOPHON
+This page is part of release 3.65 of the Linux
+.I man-pages
+project.
+A description of the project,
+and information about reporting bugs,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.