10 Data Expression

1. Understanding Inputs and Outputs So far, the data output has been sent to the monitor or sent to a file.

But sometimes, you may want to send specific data to the monitor and send specific data to a file. Now, let's see how to use that in a scraipt.

standard file descriptor Linux systems treat all objects as files. Both output and input are processed as files.

This file descriptor is a non-n.....