Execute an OS command and wait for the command to finish. exec displays output from the commands output and error streams.
If exec is executed in a pipeline, it will redirect its standard input to the standard input of the OS command being executed.
EXAMPLES
Print Information about the networking subsystem:
exec netstat
Print all of processes owned by user 'username':
exec ps aux | exec grep username
or
exec ps aux | grep username
NOTES
It is not possible to run exec commands that use the curses (programming library).
For example the command 'exec vi filename' is not supported and you will not be able to interface with the stream.
Hit Ctrl+C to break out of the command and to get the FluidShell prompt.