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colcrt(1) General Commands Manual colcrt(1) 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). OPTIONS Suppresses underlining; this is useful for previewing boxed tables from tbl. Causes 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 ap- pear. DESCRIPTION The colcrt command provides virtual half-linefeed and reverse linefeed sequences for terminals without such capability, and on which over- striking is destructive. The colcrt command changes underline charac- ters to dashes and places them and half-line characters on new lines in between the normal output lines. NOTES colcrt cannot back up more than 102 lines. General overstriking is lost; as a special case a | (vertical bar) overstruck with a - (dash) or _ (underline) becomes a + (plus sign). Lines are trimmed to 132 bytes. EXAMPLES The following command line illustrates a typical use of colcrt: tbl exum2.n | nroff -ms | colcrt - | more SEE ALSO Commands: col(1), deroff(1), more(1), neqn(1), nroff(1), pg(1), tbl(1), ul(1) colcrt(1)