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Search through 2 levels of zip

 
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# 1  
Old 02-18-2010
Search through 2 levels of zip
Hi guys,

I know I'm missing something simple here.

We have about 500 zipped files in a directory which contain more zip files and within those I need to find a file without unzipping everything.

I know I can use zipinfo which I'm trying to create a for loop to go through the files and search but what I have so far only looks in the first level of the zip I need to go down the next level to find the filename. Below is what I've tried

Code:
for f in *.zip;do zipinfo $f | grep '<filename>';done

Thanks in advance

Pete
Last edited by zaxxon; 02-18-2010 at 08:15 AM.. Reason: use code tags please
# 2  
Old 02-18-2010
Not sure if I understood you correctly; I just checked it out - it display contents of subdirs with several levels:

Code:
$> zip -r my.zip *
  adding: a (stored 0%)
  adding: b (stored 0%)
  adding: dir1/ (stored 0%)
  adding: dir1/d (stored 0%)
  adding: dir1/c (stored 0%)
  adding: dir1/dir2/ (stored 0%)
  adding: dir1/dir2/f (stored 0%)
  adding: dir1/dir2/dir3/ (stored 0%)
  adding: dir1/dir2/dir3/h (stored 0%)
  adding: dir1/dir2/dir3/g (stored 0%)
  adding: dir1/dir2/e (stored 0%)
$> zipinfo my.zip
Archive:  my.zip   1428 bytes   11 files
-rw-r--r--  2.3 unx        0 bx stor 18-Feb-10 13:19 a
-rw-r--r--  2.3 unx        0 bx stor 18-Feb-10 13:19 b
drwxr-xr-x  2.3 unx        0 bx stor 18-Feb-10 13:21 dir1/
-rw-r--r--  2.3 unx        0 bx stor 18-Feb-10 13:20 dir1/d
-rw-r--r--  2.3 unx        0 bx stor 18-Feb-10 13:20 dir1/c
drwxr-xr-x  2.3 unx        0 bx stor 18-Feb-10 13:21 dir1/dir2/
-rw-r--r--  2.3 unx        0 bx stor 18-Feb-10 13:21 dir1/dir2/f
drwxr-xr-x  2.3 unx        0 bx stor 18-Feb-10 13:21 dir1/dir2/dir3/
-rw-r--r--  2.3 unx        0 bx stor 18-Feb-10 13:21 dir1/dir2/dir3/h
-rw-r--r--  2.3 unx        0 bx stor 18-Feb-10 13:21 dir1/dir2/dir3/g
-rw-r--r--  2.3 unx        0 bx stor 18-Feb-10 13:21 dir1/dir2/e
11 files, 0 bytes uncompressed, 0 bytes compressed:  0.0%

With your for loop seems nothing wrong too. Is it just a guess it is not showing deeper level contents or can you reproduce it on for example one of those 500 zip files?
# 3  
Old 02-18-2010
Hi Zaxxon, thanks for responding

We have files which come in and get processed these are then zipped, then after 2 weeks are zipped again to archive off. I need to be able to search in the archived files (compressed twice) to find files.

The for loop does work but only on zip files which have been compressed once, the archive ones have been zipped a second time.

Hope that makes sense.

Pete
# 4  
Old 02-19-2010
Ah ok, now I understand - afaik there is no option (and no tool that comes to my mind) to get any contents of subsequent zipped archives.

Maybe it is an option to change handling of those archives, ie. that you only compress the archive that contains them all and the single former archives are just tar archives, for example.

If it is an option for you, usually archivers like tar and compression utilities like gzip bzip2, zip etc. have or should have an append option you could use so that still only the big large archive containing all others is compressed by some tool which still provides the ability to search content listings.
# 5  
Old 02-19-2010
Yeah I know what your saying

Unfortunately the files are moved between servers at certain times by cron to be processed, so it's not an option to roll them up into one file as it time critical.

Hmm must be a way of doing this
 
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