These special notations direct the shell to redirect input and output. Input and output redirection in the C shell. Before the C shell executes a command, it scans the command line for redirection characters. Note that the default standard input for a command run detached is not changed to the empty /dev/null file. Instead, the standard. Use the command cat /dev/urandom to view typical output. You can use Ctrl-c to break out. The /dev/random device file produces non-deterministic random output but it produces output more slowly. This output is not determined by an algorithm that is dependent upon the previous number, but is generated in response to keystrokes and mouse movements.
Pipe Output To Dev Null
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