khiguera / rshell

rshell

This project aims to make a working terminal called rshell. The hw0 tag has support for the following:

Comments.

When using echo with quotes the quotes will no be printed.

Comments can be printed when using quotes.

The cd command will result in an error reported by perror

Username and hostname will be printed out with the prompt.

The hw1 tag has an included cp.cpp and ls.cpp file

The ls.cpp file can run the -l -a and -R flags only as well as no flags

Some combinations of the aforementioned flags are supported. The ones that are not supported are listed in the bugs section.

It has some color support, hidden files are just not on a grey background

The cp.cpp can copy files just as the regular cp. It has an optional flag that will copy the file in 3 different ways displaying the run time of each. Otherwise the default is the fastest of the 3 methods in the file with the run time still being printed.

The hw2 tag is for piping and io redirection

Piping is not working at all nor is io redirection Will continue to work on code throughout weekend to show on monday hopefully for some points

The hw3 tag has included signal handling and the getenv syscall as well as cd

cd is working properly as does in bash with the exception of taking in the home or no argument for cd

execvp has been changed to execv, as a result the getenv syscall is invoked with the PATH bash variable.

Signal handling has been introduced for the ^C signal to work as in bash.

Known bugs:

There is no connector support.

There is a possiblity of memory leaks. The source code has not been analyzed thoroughly enough to account for this.

There is no support for autofill when pressing tab.

When using quotes midway through a string such as test"quotes" there will be a space where the quote is. Unlike in bash where the quotes are simply ignored.

If there is a comment after an ending quote it will be printed out instead of ignored.

When running script, the user login will not be printed it will result in an error reported by perror

LS BUGS When running -R with -a in any combination, all hidden files on the computer are printed not just in the current directory.

When combining -R and -l, the -l flag is run multiple times. Mainly for as many files there are in the current directory being printed out by -R

Running -R and -a is not reccommended for it will cause a near infinite loop untill all files on the machine is printed

For the same bug as above all 3 flags should not be run on the same cmd at the same time.

The Color functionality is not applied to no flags and to the -a flag due to time constraints.

CP BUGS The cp.cpp does not allow the optional flag to come before the arguments, only after. This is due to time constraints not allowing to be fixed before the deadline.

PIPING IO REDIRECTION code is able to catch when there is a pipe or an io redirection symbol however it is not handled properly.

When execvp was changed to execv, for some reason comments are no longer supported.