Bash process substitution

Re:Bash process substitution by stringy on Sunday February 08, 2015 @01:23PM (#9017996)

The fish[1] shell also has process substitution (without requiring additional syntax) in the form of psub (which is implemented simply as a fish function; see `type psub` from a fish shell):

  bash$ wc <(grep script /usr/share/dict/linux.words)
  fish$ wc (grep script /usr/share/dict/linux.words | psub)

The sugar in the bash form might be nice, but it isn't required.

[1]: http://fishshell.com/

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Re:Bash process substitution by 0942v8653 on Sunday February 08, 2015 @08:40PM (#9019347)

One thing it seems to be missing is the bash

    >(wc)

which is obviously only useful with a few things like tee, but still useful.

dag from GitHub came up with[0] a quick way of using psub:

    bind \es 'commandline -ij "(|psub)"; commandline -f backward-word backward-word'

[0]: https://github.com/fish-shell/fish-shell/issues/719#issuecom...

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Re:Bash process substitution by Ded7xSEoPKYNsDd on Sunday February 08, 2015 @05:26PM (#9018841)

Thanks for that, process substitution is one of the things I occasionally drop down to bash for.

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