The file-visit command, Ctl-X Ctl-V, can be used to read a file in for editing. The file can also be read in from the command line; beav <edit_file>.
Data is displayed in one or more windows. These commands can be used to navigate around the windows.
The move-to-byte command, Ctl-X G, will prompt you for a byte position to move to.
These commands will insert a zero byte at the cursor position or delete the byte at that position.
The file-save command, Ctl-X Ctl-S, will save the data to the file if a change has been made.
The help command, Esc ?, will display a list of all commands and their current key bindings.
The abort-cmd command, Ctl-G, will abort any command that is in operation.
The quit-no-save command, Ctl-X Ctl-C, will exit beav. If there is any data that has not been saved you will be warned.