How do I add a custom color to this script?

Question

This is the script. Does anyone know how I can change the color of the text so when I open it in terminal it changes the color?

#!/usr/bin/expect -f
spawn -noecho bash
expect "$ " 
send "put what ever you want here"
interact
exit

---

I tried it but this is what came up in Terminal

'PROMPT_BLUE=`tput setf 1`
PS1='[$PROMPT_BLUE]'
john@john:~$ PROMPT_BLUE=`tput setf 1`
john@john:~$ PS1='[$PROMPT_BLUE]'
[]perl put what ever you want here' 

---

this is what shows up and i don't know why hahaha

Answer 1

May be this is what You want:

#!/bin/bash

PROGNAME=${0##*/}

# colors:
BLUE='\033[94m'
GREEN="\e[0;32m"
RED='\033[91m'
BLACK='\033[0m'

# program:
echo -e "${RED}${PROGNAME}: ${GREEN}Done.${BLACK}"

Edit:

Minimal working example with expect:

#!/usr/bin/expect -f 

# colors:
# BLUE='\033[94m'
# GREEN="\e[0;32m"
# RED='\033[91m'
# BLACK='\033[0m'

# we need byte code. Let's get one for the blue:
# python -c "print ''.join([r'\x%x' % ord(c) for c in \"\033[94m\"])"
# gives: \x1b\x5b\x39\x34\x6d
set blue "\x1b\x5b\x39\x34\x6d"

# program:
send "${blue}hello world\n"

Edit 2:

Oh, I solved it:

#!/usr/bin/expect -f 

spawn -noecho bash
send "PROMPT_BLUE=`tput setf 1`\nPS1='\[\$PROMPT_BLUE\]'\n"
expect "$ " 
send "put what ever you want here"
interact
exit

makes all text blue.