tcsh provides functionality for manipulating the command line, including word or command completion and the ability to edit a command line.
The shell automatically completes words and commands when you press the Tab key, and notifies you when a completion is finished by appending a space to complete filenames or commands and a / to complete directories.
In addition, tcsh recognizes ~ notation for home directories; it assumes that words at the beginning of a line and following
|, &, ;, ||, or &&
are commands, and modifies the search path appropriately. Completion can be done midword; only the letters to the left of the cursor are checked for completion.