Join with gzipped files

Question

I want to use the command line join utility on two files. Unfortunately, they're gzipped. Because they're both gzipped, I can't use gzip -cd. Is there a slick way to do this without having to unzip them?

score 3 · Accepted Answer · answered Oct 13 '10 at 20:57

3

No, but bash (among other shells) can do process substitution.

join <(zcat foo.gz) <(zcat bar.gz)

answered Oct 13 '10 at 20:57

Ignacio Vazquez-Abrams

114,604

score 1 · Answer 2 · answered Jul 05 '14 at 05:07

1

It is documented in man page of gzip. You can use something like:

zcat a.gz b.gz | gzip -c > c.txt.gz

answered Jul 05 '14 at 05:07

shakaran

176

Join with gzipped files

2 Answers2