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Is there a way to make all the output of my terminal colored in a personalized way? e.g: If I issue the command: sudo apt-get update - I will get a column of text and what I want is a way to colorize RED if there are any words like "ERROR" in this text, and GREEN any words like "DONE" or "FINISHED".

Thats just an example, and I understand that this could screw up with other programs colored output, just curious if this is possible.

I'm using ZSH at the moment, but accept answers for every terminal emulator.

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You can use sed to replace word-boundary-delimited "ERROR", "DONE" and "FINISHED" strings with the same string enclosed in ANSI color escape sequences (you could alias the command in ~/.bashrc for convenience; as you can see this works in Zsh, but since it's the terminal that interprets the escape sequences this would work in any shell running in an ANSI / VT100-compatible terminal):

sudo apt-get update |& sed 's/\bERROR\b/\x1B[1;31m&\x1B[0m/; s/\bDONE\b/\x1B[1;32m&\x1B[0m/; s/\bFINISHED\b/\x1B[1;34m&\x1B[0m/'
sudo apt-get update |&
    sed '
        s/\bERROR\b/\x1B[1;31m&\x1B[0m/
        s/\bDONE\b/\x1B[1;32m&\x1B[0m/
        s/\bFINISHED\b/\x1B[1;34m&\x1B[0m/
    '

screenshot

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