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linuxbashshelltee

How can I print intermediate results from a pipeline to the screen?

I'm trying to count the lines from a command and I'd also like to see the lines as they go by. My initial thought was to use the tee command:

complicated_command | tee - | wc -l

But that simply doubles the line count using GNU tee or copies output to a file named - on Solaris.

Solution 
  • complicated_command | tee /dev/tty | wc -l

    But keep in mind that if you put it in a script and redirect the output, it won't do what you expect.