Sometime today, Kinjal Sonpal wrote:
> While going thru' the chapter of Pipes & Redirection from the
> *The Unix Programming Environment* (the famous yellow book by
> Kerninghan, et al) I read that when we use redirection, the
> system uses some temporary files to accomplish the task.
> Whereas by using pipes, the overhead of temp. files can be
> avoided.
What he means is that when you do this -
prompt# program1 > p1.out; program2 < p1.out
you have to create the temporary file p1.out . You can avoid
this by using a pipe -
prompt# program1 | program2
program1 write to the pipe and program2 reads from the pipe.
HTH.
Manish
--
The clothes have no emperor.
-- C.A.R. Hoare, commenting on ADA.
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