On Tue, Aug 02, 2011 at 01:09:38PM +1000, Malcolm Herbert wrote: | (Apologies if this is not the correct forum - I'm not sure who is | responsible for mtree) | | At the moment, if I merely want to see the differences between two | directory trees or compare to an mtree spec I can't tell mtree not to | make any modifications to it. I can tell it not to update permissions | and attributes with the -W flag, but mtree still insists on creating | missing directories. | | For example, assuming the following directory trees: | | new | new/blah | new/foo/ | old | old/bar/ | old/blah | old/foo/empty | | old/blah and new/blah differ in their content, so MD5 checks will fail | | If I want to compare these, I'd run the following: | | tiu[/data/scratch] 134v>: mtree -c -p old -K md5 | mtree -Wu -p new -K md5 | blah: md5 (0x5149d403009a139c7e085405ef762e1a, 0x3d709e89c8ce201e3c928eb917989aef) | missing: ./bar (created) | missing: ./foo/empty | | ... but then mtree will have created new/bar for me, as above. | | So, can we add a "don't to anything" option to mtree? -n appears to be | available and would match expected behaviour for other tools ... Try it without -u in the mtree that you're using to check with. mtree -c -p old -K md5 | mtree -W -p new -K md5 As an aside, I'd pipe the output of the first mtree through -C -K md5 to convert it to a format that I find saner to use especially if you're going to save the output of the former or process it with other tools. E.g, > mtree -c -p old -K md5 | mtree -C -K md5 . type=dir uid=1001 gid=0 mode=0755 nlink=4 time=1312627733.236059515 flags=none ./blah type=file uid=1001 gid=0 mode=0644 nlink=1 size=4 time=1312627730.115126094 md5=814fa5ca98406a903e22b43d9b610105 flags=none ./bar type=dir uid=1001 gid=0 mode=0755 nlink=2 time=1312627724.939881485 flags=none ./foo type=dir uid=1001 gid=0 mode=0755 nlink=2 time=1312627736.603895490 flags=none ./foo/empty type=file uid=1001 gid=0 mode=0644 nlink=1 size=0 time=1312627736.603862649 md5=d41d8cd98f00b204e9800998ecf8427e flags=none (You need to pass the same -K flags to the -C invocation otherwise mtree will strip the keywords :) cheers, Luke.
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