piping data to multiple outputs

wjtaylor · 03-29-2011, 08:59 PM

Can someone refresh my memory on this? I remember there was a command that would allow me to pipe data to an app and the use the | operator to pipe it into yet another app.

foo fooArg | Iforget app1 | app2

I forget what this command is but it pipes the data from foo into app1 and app2.

Thanks,
WT

macemoneta · 03-29-2011, 09:05 PM

You can use 'tee':

Code:

command | tee >(process1) >(process2) >(process3)

carltm · 03-29-2011, 09:29 PM

I don't believe that tee can send output to a process. It will
only write to a single file and to standard output.

For example, "command | tee output.txt | command2 | filtered.txt".

WT, can I ask what you're trying to do?

macemoneta · 03-29-2011, 09:34 PM

The tee command works as specified. For example:

Code:

$ ls -l | tee >(wc -l) >(wc -c) >(tail -n1) >/dev/null
drwxrwxr-x.   2 mmoneta mmoneta   4096 Feb 28 14:29 Vuze Downloads
3527
53
$