A lot of information is available about individual files on a Unix system. For example, the ls -l command will display the permissions matrix and ls -i will display a file’s inode. But, if we want to ...

It’s easy to take the Unix command line for granted. That is, it’s easy to get used to typing in commands and getting responses without thinking very much about how the system determines what command ...

is the name of a UNIX command, executable program, or shell script to which you want to route output or from which you want to read input. The command(s) must be enclosed in either double or single ...