Terminal Color Coding - tput

Value
Color
0
Black
1
Red
2
Green
3
Yellow
4
Blue
5
Magenta
6
Cyan
7
White
8
Not used
9
Reset to default color

Example
green=`tput setaf 2`
red=`tput setaf 2`
reset=`tput sgr0`

echo -e "\n${green}########## Display Text in GREEN Color ########## ${reset} \n"
echo -e "\n${red}########## Display Text in RED Color ########## ${reset} \n"

Customize Bash Prompt in Linux

#Set it permnently
sudo nano ~/.bashrc
#at the end of the file, paste the below and save it 
PS1="\e[1;34m[\u - \W]\$ \e[0m"

#u = username; \H = hostname; 
export PS1="\u# "

#Hide everything
export PS1="\W > "

#Show Username with last Directory in color
export PS1="\e[0;32m[\u - \W]\$ \e[0m"
export PS1="\e[1;34m[\u - \W]\$ \e[0m"

• \e[ – Begin color changes
• 0;32m – Specify the color code
• [\u@\h \W]\$ – This is the code for your normal BASH prompt (username@hostname Workingdirectory $)
• \e[0m – Exit color-change mode

The first number in the color code specifies the typeface:

• 0 – Normal
• 1 – Bold (bright)
• 2 – Dim
• 4 – Underlined

The second number indicates the color you want:

• 30 – Black
• 31 – Red
• 32 – Green
• 33 – Brown
• 34 – Blue
• 35 – Purple
• 36 – Cyan
• 37 – Light gray

Referenec: https://phoenixnap.com/kb/change-bash-prompt-linux