xcv: add page

pages/common/xcv.md

@@ -0,0 +1,19 @@
+# xcv
+
+> Cut, copy, and paste in the command-line.
+
+- Cut a file:
+
+`xcv x {{input_file}}`
+
+- Copy a file:
+
+`xcv c {{input_file}}`
+
+- Paste a file:
+
+`xcv v {{output_file}}`
+
+- List files available for pasting:
+
+`xcv l`