1) Use the cursor positioning commands to position one of the sections of the file which you wish to see towards the top of the screen. 2) Position the cursor under the text in which you are interested, so that the text lies between the top of the screen and the cursor row. 3) Type . This freezes the screen above the cursor. All editing now occurs under the divider line which is drawn. You may now move about the file within this smaller screen window. Whenyounolongerrequire thefrozendisplay,restorethenormaldisplaybytyping again. The editor will not allow you to freeze too closely to the bottom of the display, as there must be sufficient active screen area left for the editor to work in.
Ctrl K F Ctrl K F Ctrl K 0 9 Ctrl K - Places a marker within the file for you to return to later. Type followed by a single digit number (0 - 9). When moving about a large file it is often convenient to place a marker at your current position, move somewhere else for a while and then jump back to your original place. You may place up to 10 markers within a file; the markers are lost when you quit from the editor - they are not actually part of the file. Ctrl Q 0 9 - Moves the current position to the marker corresponding to that digit (see - , above), used by typing followed by a single digit number. An error message is displayed if the place marker has never been set.
Ctrl K 0 Ctrl K 9 Ctrl Q Find text, or search. You are prompted to enter a pattern which the editor is to find in the file. The editor also asks for the number of repetitions of the search: if you ask for 10 repetitions then the cursor will be moved to the tenth occurrence of the pattern within your file. If you simply press the key when asked for the number of repetitions the editor will find the next occurrence of the pattern. The search starts from the current position and proceeds forwards. The number of occurrences actually found is displayed on the status line; the cursor is left on the last found occurrence. Ctrl Q F Enter Ctrl L Last search repeat.
Finds the next occurrence of the pattern which was searched for in the most recent pattern search com- mand. Ctrl Q F Ctrl Q A Replace (substitute) text. The editor asks for a pattern for which to search; when this has been entered the editor asks for the characters which must replace the original pattern; it then asks for the number of times which the replacement must be performed. If you press the key in response to the ‘Repetitions?’ question then the replacementisdoneonlyonce. Enteringanimpossiblylargenumber Enter Page 52 User Tutorial Manual Edit: The Screen Editor