troglobit

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

troglobit

Intro

TCL-Expect scripts are an amazingly easy way to script out laborious tasks in the shell when you need to be interactive with the console. Think of them as a "macro" or way to programmaticly step through a process you would run by hand. They are similar to shell scripts but utilize the .tcl extension and a different #! call.

Setup Your Script

The first step, similar to writing a bash script, is to tell the script what it's executing under. For expect we use the following:

#!/usr/bin/expect

troglobit

flip:
	@echo '\\/' | sed -e 's:\\/://\\:'

flip-adv:
	@echo '\\/' | sed -e 's/\\\//\/\/\\/'

flip-evil:
	@echo "\\\\\/" | sed -e "s/\\\\\\\\\//\/\/\\\/"