The Mighty Named Pipe(vincebuffalo.com)

  $ unzip <(cat z)
  Archive:  /dev/fd/63
    End-of-central-directory signature not found.  Either this file is not
    a zipfile, or it constitutes one disk of a multi-part archive.  In the
    latter case the central directory and zipfile comment will be found on
    the last disk(s) of this archive.
  unzip:  cannot find zipfile directory in one of /dev/fd/63 or
        /dev/fd/63.zip, and cannot find /dev/fd/63.ZIP, period.

  $ man bash
  /<\(
  

    bash <(yes echo hello)

    echo hello
    echo hello
    echo hello
    ...

     let a = "some_file_name".as_string();
     println!("Opening: {}", a);
     let path = std::path(a);
     let mut fd = std::io::open(path);

     let mut fd = std::io::open(std::path("some_file_name".as_string()));

    &> stdout

  $ find . -name "*blarg*.cpp"
  # Some output that looks like what I'm looking for.
  
  # Run the same find again in a process, and grep for something.
  $ grep -i "blooey" $(find . -name "*blarg*.cpp")
  
  # Yep, those are the files I'm looking for, so dig in.
  # Note the additional -l in grep, and the nested processes.
  $ vim $(grep -il "blooey" $(find . -name "*blarg*.cpp"))

    <input.txt munge-data-and-split -o1 out1.txt -o2 out2.txt

    <input.txt munge-data-and-split -o1 >(xz - > out1.txt) -o2 >(xz - > out2.txt)

    pp () { sort -k2,3 -t$'\t' | xz - ; }
    <input.txt munge-data-and-split -o1 >(pp > out1.txt) -o2 >(pp > out2.txt)

    cmd1 | tee out.txt | cmd2

    a | b

    $ echo $$
    12345  # <--- PID of your shell
    $ tee >( sort ) >( sort ) >( sort ) otherfile | sort

    $ pstree 12345 # <--- PID of your shell

    zsh,301
      ├─sort,3600 # <-- this one reads from the other end of the shell's fd #14
      ├─sort,3601 # <-- this one reads from the other end of the shell's fd #15
      ├─sort,3602 # <-- this one reads from the other end of the shell's fd #15
      ├─sort,3604 # <-- this one reads from stdout of tee
      └─tee,3603 /proc/self/fd/14 /proc/self/fd/15 /proc/self/fd/16 otherfile

    $ strace -fe fork,pipe,close,dup,dup2,execve bash -c 'tee <(sort) <(sort)'