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- -r or --raw-control-chars
- Causes "raw" control characters to be displayed. The default is
- to display control characters using the caret notation; for
- example, a control-A (octal 001) is displayed as "^A". Warning:
- when the -r option is used, less cannot keep track of the actual
- appearance of the screen (since this depends on how the screen
- responds to each type of control character). Thus, various
- display problems may result, such as long lines being split in
- the wrong place.
- -R or --RAW-CONTROL-CHARS
- Like -r, but only ANSI "color" escape sequences are output in
- "raw" form. Unlike -r, the screen appearance is maintained
- correctly in most cases. ANSI "color" escape sequences are
- sequences of the form:
- ESC [ ... m
- where the "..." is zero or more color specification characters
- For the purpose of keeping track of screen appearance, ANSI
- color escape sequences are assumed to not move the cursor. You
- can make less think that characters other than "m" can end ANSI
- color escape sequences by setting the environment variable
- LESSANSIENDCHARS to the list of characters which can end a color
- escape sequence. And you can make less think that characters
- other than the standard ones may appear between the ESC and the
- m by setting the environment variable LESSANSIMIDCHARS to the
- list of characters which can appear.
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