'What does "[0;31m" means?

I saw this string in many places,but what does it means ?

For example : https://github.com/ibnYusrat/my-linux-setup/blob/master/setup.sh

example in github

shell


Solution 1:[1]

This is a ANSI escape sequence. It's mainly used to colorize/format your shell's standard out. Please find a list of valid sequences here.
Regarding the title of this thread --> \033[0;31m start's to colorize your output red. Please be aware that you must reset your sequence with \033[0m.
See attached an example: enter image description here

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Krischa Onarestlessday

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