What is always the first line of a script file?
The shebang or bang line
What is a shebang or bang line?
It tells which interepreter should be used for the execution of the file.
What is the representation of a shebang?
#!
How do I execute a script?
By just entering its absolute or relative path.
What is the command to add a new path to the PATH variable?
export PATH=$PATH: