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COLCRT

Section: User Commands (1)
Updated: September 2011
Index Return to Main Contents
 

NAME

colcrt - filter nroff output for CRT previewing  

SYNOPSIS

colcrt [options] [file...]  

DESCRIPTION

colcrt provides virtual half-line and reverse line feed sequences for terminals without such capability, and on which overstriking is destructive. Half-line characters and underlining (changed to dashing `-') are placed on new lines in between the normal output lines.  

OPTIONS

-, --no-underlining
Suppress all underlining. This option is especially useful for previewing allboxed tables from tbl(1).
-2, --half-lines
Causes all half-lines to be printed, effectively double spacing the output. Normally, a minimal space output format is used which will suppress empty lines. The program never suppresses two consecutive empty lines, however. The -2 option is useful for sending output to the line printer when the output contains superscripts and subscripts which would otherwise be invisible.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
 

EXAMPLES

A typical use of colcrt would be:

tbl exum2.n | nroff -ms | colcrt - | more
 

SEE ALSO

nroff(1), troff(1), col(1), more(1), ul(1)  

BUGS

Should fold underlines onto blanks even with the '-' option so that a true underline character would show.

Can't back up more than 102 lines.

General overstriking is lost; as a special case '|' overstruck with '-' or underline becomes '+'.

Lines are trimmed to 132 characters.

Some provision should be made for processing superscripts and subscripts in documents which are already double-spaced.  

HISTORY

The colcrt command appeared in 3.0BSD.  

AVAILABILITY

The colcrt command is part of the util-linux package and is available from Linux Kernel Archive


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLES
SEE ALSO
BUGS
HISTORY
AVAILABILITY


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