Re: [9fans] rc - how to...

[rog@vitanuova.com]

> du / | while(file=`{read})
> 	echo $file

it's probably worth mentioning that this is really quite slow, as the
read command is unable to do any IO buffering, must read one
character at a time, and is reloaded on every line of input:

on my machine,
	while (file=`{read}) {}

exececutes about 85 lines a second, whereas a simple xargs-like
program processes about 4300.

this could be quite significant if you're using to process
output from du (what was viable in the old bourne
shell with

	du . | while read x
	do something with $x
	done

is not necessarily fast enough in the rc equivalent)