My question is can you use the pipe more than one time in the same command line? By the way I am new to UNIX. Thanks in advanced!

Each process only has one standard output, so there's only one thing per process to pipe... You could do things like redirecting standard error into fifo files, but I wouldn't reccomend using standard error to carry data for performance and reliability reasons -- it's unbuffered, and supposed to be for errors, what happens when "cannot open file" appears in the middle of your data stream?

I think (although I may be wrong) that the poster is asking if it is legal to do something like If that's the case, then yes, you can do that.

That's what I was asking. Thanks all for the quit response. I am so that I found this forum. I can already see its going to be a great help for me to learn more about UNIX. Once again Thank you!