Ubuntu – change text-color of the output on command prompt

bashcommand linelubuntuPHP

Suppose i've a php file and i want to change text-colour of my output for a console based application…

<?php
$prompt = "What Is Your Name: ";
echo $prompt;
$answer =  "You Entered: " . rtrim( fgets( STDIN ));
echo $answer;
?>

I want to change text-colour of $answer.

Is it possible? If yes, how can I do this?

Best Answer

Now you can use 24-bit true color in terminal in Ubuntu 16.04

The foreground escape sequence is ^[38;2;<red>;<green>;<blue>m
The background escape sequence is ^[48;2;<red>;<green>;<blue>m
<red> <green> <blue> range from 0 to 255 inclusive.
The escape sequence ^[0m returns output to default.

See RGB Color Codes Chart

Demonstration of 24-bit true color in a script:

Here is the modified script to produce colored output.

<?php
$prompt = "What Is Your Name: ";
echo $prompt;
$answer =  rtrim( fgets( STDIN ));
echo "\033[38;2;0;102;0m You \033[38;2;255;0;255m Entered: \033[38;2;255;255;0m $answer \033[0m \n";
?>

Sample Output of the above script:

Related Solutions

Ubuntu – Changing colors for user, host, directory information in terminal command prompt

You can edit the settings editing the file: ~/.bashrc.

Open the file: gedit ~/.bashrc.
Look for the line with #force_color_prompt=yes and uncomment (delete the #).
Look for the line below if [ "$color_prompt" = yes ]; then that should looks like:
```
PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
```
Pay attention at the part \u@\h it is saying "user@host" and the number before it \[\033[01;32m\] indicates the color. This is what you have to change. For example, lets change the user to purple, the "@" to black and host to green. Edit the line so it looks like:
```
PS1='${debian_chroot:+($debian_chroot)}\[\033[01;35m\]\u\[\033[01;30m\]@\[\033[01;32m\]\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
```

Result:
enter image description here

The colors numbers are:

Black       0;30     Dark Gray     1;30
Blue        0;34     Light Blue    1;34
Green       0;32     Light Green   1;32
Cyan        0;36     Light Cyan    1;36
Red         0;31     Light Red     1;31
Purple      0;35     Light Purple  1;35
Brown       0;33     Yellow        1;33
Light Gray  0;37     White         1;37

References: 1, 2.

Ubuntu – How to create a new text file with a new name from a phpscript everytime it is executed

here's a php script that writes a file named using the unix timestamp:

#!/usr/bin/env php
<?php
file_put_contents("file" . ((int) microtime(true)) . ".txt", file_get_contents("/proc/cpuinfo"));
?>

if you want fill the file from i.e. stdin, change /proc/cpuinfo to php://stdin

here's a shell script that does the same as the original php script

#!/bin/sh
cat /proc/cpuinfo | tee "file`date +%s`.txt" > /dev/null

you can chmod +x both of these and execute them