Operating system functions.
System.os.posix
: Common POSIX functions and constants.args
: Arguments passed in from the shell.dylib_extension
: The dynamic library extension on this system.chdir(newcwd)
: Changes the current working directory.newcwd
: The directory to change to.envGet(var)
: Retrieve contents of environment variable.var
: Environment variable to return.envSet(var, val)
: Set contents of environment variable to given value.var
: Variable to set.val
: Value to set variable to.fork()
: Forks off a new process.getcwd()
: Gets the current working directory.system(cmd)
: Executes system command.cmd
: Command to execute.