Package commands

Class Summary
cat Concatenates files (defined by the arguments) to the standard output, whereas the argument "-" represents the standard input.
cd implentation of the CD command
date Prints the current date.
echo Prints given input.
exit Terminates the shell in which it was run.
grep Searches the files given by the input arguments for a specific pattern.
kill Terminates one or more processes according to the given PIDs.
login Implementation of the LOGIN command.
ls  
man Prints help for specified command.
ps Prints all running processes.
pwd Prints the current directory.
shell Starts a new shell.
shutdown Terminates the system by terminating the root process.