table of contents
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
-2, --half-lines
-V, --version
-h, --help
HISTORY¶
The colcrt command appeared in 3.0BSD.
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.
EXAMPLES¶
A typical use of colcrt would be:
tbl exum2.n | nroff -ms | colcrt - | more
SEE ALSO¶
REPORTING BUGS¶
For bug reports, use the issue tracker at <https://github.com/karelzak/util-linux/issues>.
AVAILABILITY¶
The colcrt command is part of the util-linux package which can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>.
2022-02-14 | util-linux 2.37.4 |