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man pages section 1: User Commands

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Updated: Thursday, June 13, 2019
 
 

colcrt (1)

Name

colcrt - filter nroff output for CRT previewing

Synopsis

colcrt [options] [file...]

Description

COLCRT(1)                        User Commands                       COLCRT(1)



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


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+---------------------+
       |ATTRIBUTE TYPE |  ATTRIBUTE VALUE    |
       +---------------+---------------------+
       |Availability   | text/text-utilities |
       +---------------+---------------------+
       |Stability      | Uncommitted         |
       +---------------+---------------------+
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  sub-
       scripts 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  <ftp://ftp.kernel.org/pub/linux/utils/util-
       linux/>.



NOTES
       This     software     was    built    from    source    available    at
       https://github.com/oracle/solaris-userland.   The  original   community
       source        was        downloaded        from        https://www.ker-
       nel.org/pub/linux/utils/util-linux/v2.29/util-linux-2.29.tar.xz

       Further information about this software can be found on the open source
       community website at https://www.kernel.org/pub/linux/utils/util-linux.



util-linux                      September 2011                       COLCRT(1)