reada line of input from the user and store as a variable
A readline function to allow a line of data inputed from the terminal.
read: "prompt" var_name <stdin> -> read: var_name
read: "What is your name? " name out: "Hello $name" out: What is your name? -> read: name out: "Hello $name"
read is called as a method then the prompt string is taken from STDIN. Otherwise the prompt string will be the first parameter. However if no prompt string is given then
read will not write a prompt.
The last parameter will be the variable name to store the string read by
read. This variable cannot be prefixed by dollar,
$, otherwise the shell will write the output of that variable as the last parameter rather than the name of the variable.
The data type the
read line will be stored as is
str (string). If you require this to be different then please use
tread (typed read).
((brace quote): Write a string to the STDOUT without new line
>>(append file): Writes STDIN to disk - appending contents if file already exists
>(truncate file): Writes STDIN to disk - overwriting contents if file already exists
cast: Alters the data type of the previous function without altering it's output
err: Print a line to the STDERR
echoa string to the STDOUT with a trailing new line character
tout: Print a string to the STDOUT and set it's data-type
reada line of input from the user and store as a user defined typed variable