Primitive shell(like bash) with almost no future
To make one own shell you can clone this repository and run mvn clean install in terminal
In first approximation supports echo $INPUT, cat $FILE, wc $FILE, pwd and exit commands with strong(') and weak quotes(")
Also supports some sort of environment variables, namely you can assign a value to a variable amd get a value from variable via $ operator.
Shell has no data types, everything is string