| TERMINAL-COLORS.D(5) | File formats | TERMINAL-COLORS.D(5) |
NAME¶
terminal-colors.d - configure output colorization for various utilities
SYNOPSIS¶
/etc/terminal-colors.d/[[name][@term].][type]
DESCRIPTION¶
Files in this directory determine the default behavior for utilities when coloring output.
The name is a utility name. The name is optional and when none is specified then the file is used for all unspecified utilities.
The term is a terminal identifier (the TERM environment variable). The terminal identifier is optional and when none is specified then the file is used for all unspecified terminals.
The type is a file type. Supported file types are:
disable
enable
scheme
If there are more files that match for a utility, then the file with the more specific filename wins. For example, the filename "@xterm.scheme" has less priority than "dmesg@xterm.scheme". The lowest priority are those files without a utility name and terminal identifier (e.g., "disable").
The user-specific $XDG_CONFIG_HOME/terminal-colors.d or $HOME/.config/terminal-colors.d overrides the global setting.
DEFAULT SCHEME FILES FORMAT¶
The following statement is recognized:
name color-sequence
The name is a logical name of color sequence (for example "error"). The names are specific to the utilities. For more details always see the COLORS section in the man page for the utility.
The color-sequence is a color name, ASCII color sequences or escape sequences.
Color names¶
black, blink, blue, bold, brown, cyan, darkgray, gray, green, halfbright, lightblue, lightcyan, lightgray, lightgreen, lightmagenta, lightred, magenta, red, reset, reverse, and yellow.
ANSI color sequences¶
The color sequences are composed of sequences of numbers separated by semicolons. The most common codes are:
| 0 | to restore default color |
| 1 | for brighter colors |
| 4 | for underlined text |
| 5 | for flashing text |
| 30 | for black foreground |
| 31 | for red foreground |
| 32 | for green foreground |
| 33 | for yellow (or brown) foreground |
| 34 | for blue foreground |
| 35 | for purple foreground |
| 36 | for cyan foreground |
| 37 | for white (or gray) foreground |
| 40 | for black background |
| 41 | for red background |
| 42 | for green background |
| 43 | for yellow (or brown) background |
| 44 | for blue background |
| 45 | for purple background |
| 46 | for cyan background |
| 47 | for white (or gray) background |
Escape sequences¶
To specify control or blank characters in the color sequences, C-style \-escaped notation can be used:
| \a | Bell (ASCII 7) |
| \b | Backspace (ASCII 8) |
| \e | Escape (ASCII 27) |
| \f | Form feed (ASCII 12) |
| \n | Newline (ASCII 10) |
| \r | Carriage Return (ASCII 13) |
| \t | Tab (ASCII 9) |
| \v | Vertical Tab (ASCII 11) |
| \? | Delete (ASCII 127) |
| \_ | Space |
| \\ | Backslash (\) |
| \^ | Caret (^) |
| \# | Hash mark (#) |
Please note that escapes are necessary to enter a space, backslash, caret, or any control character anywhere in the string, as well as a hash mark as the first character.
For example, to use a red background for alert messages in the output of dmesg(1), use:
echo 'alert 37;41' >>
/etc/terminal-colors.d/dmesg.scheme
Comments¶
Lines where the first non-blank character is a # (hash) are ignored. Any other use of the hash character is not interpreted as introducing a comment.
ENVIRONMENT¶
TERMINAL_COLORS_DEBUG=all
FILES¶
$XDG_CONFIG_HOME/terminal-colors.d
$HOME/.config/terminal-colors.d
/etc/terminal-colors.d
EXAMPLE¶
Disable colors for all compatible utilities:
touch /etc/terminal-colors.d/disable
Disable colors for all compatible utils on a vt100 terminal:
touch /etc/terminal-colors.d/@vt100.disable
Disable colors for all compatible utils except dmesg(1):
touch /etc/terminal-colors.d/disable
touch /etc/terminal-colors.d/dmesg.enable
COMPATIBILITY¶
The terminal-colors.d functionality is currently supported by all util-linux utilities which provides colorized output. For more details always see the COLORS section in the man page for the utility.
REPORTING BUGS¶
For bug reports, use the issue tracker at <https://github.com/karelzak/util-linux/issues>.
AVAILABILITY¶
terminal-colors.d 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 |