Unzip a file into a target directory?
You can either recreate the complete folder-structure including the All CRGs
-Folder or you can ommit all folders inside the ZIP-file by using the -j
-flag for the unzip-command.
The problem is that the ZIP-file has been created using the All CRGs
-Folder as top-level like zip "All CRGs.zip" "All CRGs"
. The correct way would have been zip "All CRGs.zip" "All CRGs/*"
which would have created a ZIP-Archive of all the files and folders inside the All CRGs
-folder without the surrounding folder.
So the only way to extract only the files by retaining the folder-structure would be something like this:
unzip "All CRGs.zip" -d data/ && mv "data/All CRGs/*" "data/" && rmdir "data/All CRGs"
It will unzip the complete folder and after that move the content of the folder up one level and finaly remove the (now empty) "All CRGs"-folder.
Since you know the zip file contains an unwanted top-level folder, and since you know the name of that top level folder, you can use a symlink to cause all the contents of that folder to appear in the parent like so:
ln -s . 'data/All CRGs'
unzip 'All CRGs.zip' -d data
The ln
step causes the folder data/All CRGs
to be created, linking to the current directory (relative to data/
), which is data/
. Then, when you extract files from All CRGs.zip
and the unzip
command tries to create data/All CRGs/file.dat
, that file will get created as data/./file.dat
.
This technique can be demonstrated without a zip file using touch:
$ mkdir data
$ ln -s . data/subdir
$ touch data/subdir/foo.txt
$ ls data
foo.txt subdir
You can use this trick too to cause certain files or folders to be extracted to an alternate folder:
ln -s /tmp data/subdir2
Then anything in the archive being extracted to subdir2
will appear in /tmp
.