2 files changed, 18 insertions, 1 deletions
diff --git a/doc/casm.html b/doc/casm.html
index 100abdc..138db3c 100644
--- a/doc/casm.html
+++ b/doc/casm.html
@@ -155,6 +155,9 @@ casm <i>file</i>
 <p>Note that switches aren't used by <b>casm</b>.  Instead options are
 controlled by commands in the source <i>file</i>.</p>
 
+<p>If you type the command without an argument, usage, version and license
+info is displayed.</p>
+
 
 <h2>Memory Layout</h2>
 
diff --git a/src/casm.c b/src/casm.c
index bad07f1..0468f06 100644
--- a/src/casm.c
+++ b/src/casm.c
@@ -52,6 +52,20 @@
 */
 
 
+/* ---------------------------------------- VERSION INFO
+*/
+
+static const char *casm_usage =
+"Version 1.0\n"
+"\n"
+"This program is distributed in the hope that it will be useful,\n"
+"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
+"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
+"GNU General Public License (Version 3) for more details.\n"
+"\n"
+"usage: casm file\n";
+
+
 /* ---------------------------------------- TYPES
 */
 
@@ -519,7 +533,7 @@ int main(int argc, char *argv[])
 
     if (!argv[1])
     {
-        fprintf(stderr,"usage: casm file\n");
+        fprintf(stderr,"%s\n", casm_usage);
         exit(EXIT_FAILURE);
     }