In addition, you can type the first few characters of a filename, and then press the key, and the 1616/OS will attempt to complete the filename you have started. You can also use , and the 1616/OS will attempt to match the last word. Likewise will recall the last word from the previous line, and if used again, the word before that, and so on. Tab Ctrl C Ctrl O The line editor Whenever the operating system, or any program which runs under it, must obtain a line of input from the keyboard, the system line editor is used. The line editor permits you to enter a single line of up to 511 characters. It has many features to simplify and accelerate command entry.
In particular, the line editor permits you to recall to the screen any of the last ten commands you have issued (you can alter the number of commands it stores, if you have a disk drive). It then allows you to modify these commands, to make a new command. This feature allows very rapid changes to repetitive commands, and easy correction of mistakes in commands. You should learn how to use the line editor, as you discard much of the power of the keyboard if you ignore it. The line editor’s commands have been designed for compatibility with those of the screen editor - only the command differs. The line editor’s special features are invoked by typing control characters.
These commands generally follow the same pattern as the ‘WordStar’ word processor. Ctrl Y To insert characters into the line one types in the normal manner. The key causes previously entered lines to be inserted into the current line at the cursor position. Typing it once causes the most recent line to be inserted. Typing it again causes the addition of the line before that and so on. Ctrl W The line editor’s control character commands are grouped as follows: Cursor positioning commands:
or Go forward one character Go forward one word or Go backward one character Go backward one word or If at start of line, go to end; otherwise go to start Ctrl D Ctrl F Ctrl S Ctrl A Ctrl B End Text deletion commands: , Delete the character under the cursor Delete from the cursor to the start of the next word Delete from the cursor to the end of the line , Delete the character before the cursor Delete from the start of the line up to the cursor Ctrl G Del Ctrl T Ctrl Y Bs Ctrl H Ctrl V Miscellaneous commands: Recall previously typed lines, insert most recent at cursor Ctrl W First Steps User Tutorial Manual Page 19