shell - Error piping before output -


let’s have group of commands, , give error follows:

 begin;      echo “starting test";      ls;      bad_command -xyz;  end

if don’t redirect output or error results expected i.e.

starting test foo.txt someotherfile.png somedir unknown command: ‘bad_command’

however, pipe whole block textedit changing last line end 2&>1 | open -f -a textedit error comes first in file, , order messed up. happens when piping other commands. why happen, , how can prevent that?

you having problem because pipes buffer stdout not stderr, , therefore getting stderr output first. way solve not use pipes, , instead redirect output temporary file. then, work file need do.


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