Add some commandline options

1 files changed, 27 insertions, 1 deletions

diff --git a/nginx-confgen.pod b/nginx-confgen.pod
index 10af518..2bc0176 100644
--- a/nginx-confgen.pod
+++ b/nginx-confgen.pod
@@ -7,7 +7,7 @@ files.
 
 =head1 SYNOPSIS
 
-nginx-confgen <input.conf >output.conf
+nginx-confgen -i input.conf -o output.conf
 
 =head1 DESCRIPTION
 
@@ -30,6 +30,32 @@ below.
 B<WARNING:> Do NOT use nginx-confgen with untrusted input, the C<pre_exec>
 directive allows, by design, arbitrary code execution.
 
+=head1 OPTIONS
+
+The following command-line options are supported:
+
+=over
+
+=item -h
+
+Show help text.
+
+=item -V, --version
+
+Show program version.
+
+=item -i I<FILE>
+
+Use the given file name as input file. If this option is not given or set to
+C<->, then the file will be read from standard input.
+
+=item -o I<FILE>
+
+Write the output to the given file. If this option is not given or set to C<->,
+then the file will be written to standard output.
+
+=back
+
 
 =head1 DIRECTIVES