5min chapter

The Changelog: Software Development, Open Source cover image

Efficient Linux at the CLI (Interview)

The Changelog: Software Development, Open Source

CHAPTER

How to Substitute a Command in a Pipeline

Some commands don't work well in pipelines, like the move command. And then there's another one that has a similar name to command substitution called process substitution. This substitution allows you to create a sort of pretend file, a pretend disk file that fits right into the command line with you. It really has to do more with file descriptors, but we'll kind of skip over that.

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