(1) In
operating system shells,
redirection refers to directing
input and
output to
files and
devices other than the
default I/O devices. By default, input generally comes from the
keyboard or
mouse, and output goes to the
display monitor. With a redirection
operator, you can override these defaults so that a
command or
program takes input from some other device and sends output to a different device.
In DOS and UNIX systems, the redirection operators are < for input and > for output. For example, the DOS command
sort < c:\list > c:\sorted
takes input from a file called list, sorts it, and sends output to a file called sorted.
(2) See meta refresh.
