Change Output Text Color with Echo in Bash Command Line

This article introduces how to change the echo command output color to red in the Bash command line on Linux PCs and servers.

RED='\033[0;31m'
NC='\033[0m' # No Color
echo -e "I ${RED}love${NC} Stack Overflow"

bash - How to change the output color of echo in Linux - Stack Overflow

If you want to change the error output (stderr) instead of standard output, it gets a bit more complex.

Reference:

bash: print stderr in red color - Server Fault