The Korn shell provides a number of operators than can be used to manipulate command input/output and files. For example, you can save command output to a file. Or instead of typing in the input to a command, it can be taken from a file. The following sections describe some of the features of Korn shell I/O redirection.
Redirecting Standard Output
The standard output of a command is by default directed to your terminal. By using the > symbol, the standard output of a command can be redirected to a file, instead of your terminal. In this example, the standard output of the echo command is put into the file p.out:
$ echo "Hello" > p.out $ cat p.out Hello
If the file doesn't exist, then it is created. Otherwise, the ...