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Compare two directory trees.

Terminal - Compare two directory trees.
diff <(cd dir1 && find | sort) <(cd dir2 && find | sort)
2009-05-21 04:44:29
User: mbirk
Functions: cd diff find
32
Compare two directory trees.

This uses Bash's "process substitution" feature to compare (using diff) the output of two different process pipelines.

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives
diff <(cd dir1 && find . | sort) <(cd dir2 && find . | sort)
diff -qr <dir1> <dir2>

Know a better way?

If you can do better, submit your command here.

What others think

Very nice!

Thanks!

Comment by DaveQB 378 weeks and 5 days ago

Hi, take a look to diff man page :

diff -a -q -r dir1 dir2
Comment by sputnick 376 weeks and 6 days ago

My command only compares the file file *names* -- not the contents of the file (like your "diff" command does).

Comment by mbirk 353 weeks and 4 days ago

Very nice, thanks. Here's a possible improvement (shorter to type):

diff <(find dir1 | sort) <(find dir2 | sort)
Comment by dserodio 201 weeks and 6 days ago

Nevermind, my "improvement" is broken :)

Comment by dserodio 201 weeks and 6 days ago

@dserodio your command works fine if you use a full path for your directories

Comment by linuxrawkstar 50 weeks and 6 days ago

@linuxrawkstar No, in that case find will print the full path and diff will report every line as not matching. The point of using relative directories and the cd command is for diff to filter out the common (relative) paths.

Comment by mbirk 50 weeks and 6 days ago

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Comment by xiaozhengm 30 weeks and 1 day ago

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