07-17-2003
"more" or "less"
e.g. cat abc.txt | less
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PROOF(1) General Commands Manual PROOF(1)
NAME
proof - troff output interpreter
SYNOPSIS
proof [ -mmag ] [ -/nview ] [ -F dir ] [ -d ] [ file ]
DESCRIPTION
Proof reads troff(1) intermediate language from file or standard input and simulates the resulting pages on the screen.
After a page of text is displayed, proof pauses for a command from the keyboard. The typed commands are:
newline Go on to next page of text.
- Go back to the previous page.
q Quit.
pn Print page n. An out-of-bounds page number means the end nearer to that number; a missing number means the current page; a
signed number means an offset to the current page.
n Same as pn.
c Clear the screen, then wait for another command.
mmag Change the magnification at which the output is printed. Normally it is printed with magnification .9; mag=.5 shrinks it to half
size; mag=2 doubles the size.
xval Move everything val screen pixels to the right (left, if val is negative).
yval Move everything val screen pixels down (up, if val is negative).
/nview Split the window into nview pieces. The current page goes into the rightmost, bottommost piece, and previous pages are shown in
the other pieces.
-F dir Use dir for fonts instead of /lib/font/bit.
d Toggle the debug flag.
These commands are also available, under slightly different form, from a menu on button 3. The pan menu item allows arbitrary positioning
of the page: after selecting pan, press the mouse button again and hold it down while moving the page to the desired location. The page
will be redisplayed in its entirety when the button is released.
The m, x, y, F, /, and d commands are also available as command line options.
FILES
/lib/font/bit/*
fonts
/lib/font/bit/MAP
how to convert troff output fonts and character names into screen fonts and character numbers
SOURCE
/sys/src/cmd/proof
SEE ALSO
lp(1), gs(1)
J. F. Ossanna and B. W. Kernighan, ``Troff User's Manual''
PROOF(1)