readme_doc

# HOW TO USE SHELL (Start)

This is a recreation of the Unix Shell done for a school project.

Enter a command you want to be run and hit enter. The format is typically [command] [argument1] [argument2] and so on.

It will present errors if a command is inputed wrong or fails.

This shell supports the following built in commands:

cd - No argument will print the current directory, 1 argument will move the user into the given directory. This can take no arguments or one.
dir - No argument prints the content of the current directory. 1 argument will print the content of that directory. This can take no arguments or one.
pause - pauses the shell until enter is pressed.
environ - no arguments, prints all the environment variables. These are variables the shell has access to whenever and can be used by any program.
help - displays this document with the more functionality.
clr - no arguments, clears the console output.
echo - prints out the line you typed, excluding 'echo'.
quit/exit - quit the shell.

This shell also supports all external commands found in Unix Shell and the /bin folder. Examples are ls, hexdump, gcc, and so on.

This shell supports input and output redirection. '<' is used for input redirection, and '>' or '>>' is used for output redirection. 
Using '>' will overwrite whatever is in the output, while '>>' will append to the end of whatever is in the output. 
These change stdin and stdout to whatever is given for the executing process. ex: [command] > [file], [command] >> [file2], [file] < [command]

This shell also supports piping, which is another form of redirection. Piping is used in a similar way with regular input and output redirection, using the pipe symbol '|' between commands. Piping takes the output of one command and uses it as input to for the next command. ex: [command1] | [command2]

This shell also supports commands running in the background. To do this, include an ampersand '&' at the end of a command. This allows you to immediately return back to the shell to run more commands. Your process will run in the background.

If the user has any problems with myshell that can't be fixed via this manual or needs more information regarding myshell please see the documentation attached in this github repository named readme

# End of user manual