p4 : add page (#2403)

pages/common/p4.md

@@ -0,0 +1,35 @@
+# p4
+
+> Perforce Version Control System.
+
+- Log in to the Perforce service:
+
+`p4 login -a`
+
+- Create a client:
+
+`p4 client`
+
+- Copy files from depot into the client workspace:
+
+`p4 sync`
+
+- Create or edit changelist description:
+
+`p4 change`
+
+- Open a file to edit:
+
+`p4 edit -c {{changelist_number}} {{file_name}}`
+
+- Open a new file to add it to the depot:
+
+`p4 add`
+
+- Display list of files modified by changelist:
+
+`p4 describe -c {{changelist_number}}`
+
+- Submit a changelist to the depot:
+
+`p4 submit -c {{changelist_number}}`