OSF

NAME

colcrt − Filters text processor output for screen previewing

SYNOPSIS

colcrt [- -2] [file ...]

The colcrt command filters output from text processors such as nroff so that it can be previewed on a cathode ray tube (CRT). 

FLAGS

-Suppresses underlining; this is useful for previewing boxed tables from tbl. 

-2Causes all half-lines to be printed, effectively doublespacing the output.  This is useful when printing output with subscripts and superscripts on a line printer, where half-lines do not normally appear. 

DESCRIPTION

The colcrt command provides virtual half-linefeed and reverse linefeed sequences for terminals without such capability, and on which overstriking is destructive.  colcrt changes underline characters to dashes and places them and half-line characters on new lines in between the normal output lines. 

EXAMPLES

The following command line illustrates a typical use of colcrt:

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

NOTES

     1.colcrt cannot back up more than 102 lines. 

     2.General overstriking is lost; as a special case a | (vertical bar) overstruck with a - (dash) or _ (underline) becomes a + (plus sign). 

     3.Lines are trimmed to 132 bytes. 

RELATED INFORMATION

col(1), deroff(1), more(1), neqn(1), nroff(1), pg(1), tbl(1), ul(1)