# p4 > Perforce Version Control System. > More information: . - 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}} {{path/to/file}}` - 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}}`