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rustyx
Asked: 2012-03-04 14:27:02 +0800 CST

How to concatenate streams?

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I know cat can concatenate files, but I need to concatenate a mix of files and streams and pipe the result to another process.

To make the question more concrete, I want to concatenate cat abc.sql together with gzip -dc xyz.sql.gz and cat qvf.sql and pipe it all as a single stream to mysql.

What's the best way to achieve this?

shell pipe cat

1 Answers

  1. Best Answer

    Just use a subshell, e.g.

    (cat abc.sql; gzip -dc xyz.sql.gz; cat qvf.sql) | mysql
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