Using color in scripts Post: 303033786

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Operating Systems Linux Ubuntu Using color in scripts Post 303033786 by Don Cragun on Thursday 11th of April 2019 04:36:33 PM

04-11-2019

Registered User

Quote:

Originally Posted by drew77

Code:

andy@7_~/bin$ pwd
/home/andy/bin
andy@7_~/bin$ printf '%s\n' "$PATH"
/home/andy/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
andy@7_~/bin$ ls -l my-hilite
ls: cannot access 'my-hilite': No such file or directory
andy@7_~/bin$ type env bash
env is /usr/bin/env
bash is /bin/bash

I named my script Hilite.sh if that makes a difference.

It makes a difference.

If someone gives you a script named my_hilite and you do not install it with the name my-hilite, then you need to change everything that references my-hilite to reference whatever named you used when you installed it instead.

And, when you install it you have to make sure that the script will be readable and executable by whatever users want to run that script.

Code:

chmod 755 Hilite.sh

should give you a reasonably readable, executable script. Then you just have to find EVERYTHING that attempts to invoke my-hilite and change every reference to it to be Hilite.sh.

Last edited by Don Cragun; 04-11-2019 at 05:57 PM.. Reason: Fix typo: s/Hiliite[.]sh/Hilite.sh/

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ncurses_init_color

NCURSES_INIT_COLOR(3)							 1						     NCURSES_INIT_COLOR(3)

ncurses_init_color - Define a terminal color

SYNOPSIS

       int ncurses_init_color (int  $color, int  $r, int  $g, int  $b)

DESCRIPTION

	Defines  or redefines the given color. When this function is called, all occurrences of the given color on the screen, if any, immediately
       change to the new definition.

	Color capabilities must be supported by the terminal and initialized using ncurses_start_color(3) prior to calling this function. In addi-
       tion, the terminal must have color changing capabilities; use ncurses_can_change_color(3) to check for this.

PARAMETERS

	      o $color
		- The identification number of the color to redefine. It may be one of the default color constants.

	      o $r
		- A color value, between 0 and 1000, for the red component.

	      o $g
		- A color value, between 0 and 1000, for the green component.

	      o $b
		- A color value, between 0 and 1000, for the blue component.

RETURN VALUES

	Returns  -1 if the function was successful, and 0 if ncurses or terminal color capabilities have not been initialized or the terminal does
       not have color changing capabilities.

SEE ALSO

       ncurses_color_content(3), ncurses_start_color(3).

PHP Documentation Group 												     NCURSES_INIT_COLOR(3)