How can u create a new folder inside a bucket in google cloud storage using the gsutil command?
I tried using the same command in creating bucket but still got an error
gsutil mb -l us-east1 gs://my-awesome-bucket/new_folder/
Thanks!
The concept of directory is abstract in Google Cloud Storage. From the docs (How Subdirectories Work) :
gsutil provides the illusion of a hierarchical file tree atop the "flat" name space supported by the Google Cloud Storage service. To the service, the object gs://your-bucket/abc/def.txt is just an object that happens to have "/" characters in its name. There is no "abc" directory; just a single object with the given name.
So you cannot "create" a directory like in a traditional File System.
If you're clear about what folders and objects already exist in the bucket, then you can create a new 'folder' with gsutil by copying an object into the folder.
>mkdir test
>touch test/file1
>gsutil cp -r test gs://my-bucket
Copying file://test\file1 [Content-
Type=application/octet-stream]...
/ [1 files][ 0.0 B/ 0.0 B]
Operation completed over 1 objects.
>gsutil ls gs://my-bucket
gs://my-bucket/test/
>gsutil ls gs://my-bucket/test
gs://my-bucket/test/file1
It won't work if the local directory is empty.
More simply:
>touch file2
>gsutil cp file2 gs://my-bucket/new-folder/
Copying file://test\file2 [Content- ...
>gsutil ls gs://my-bucket/new-folder
gs://my-bucket/new-folder/file2
Be aware of the potential for Surprising Destination Subdirectory Naming. E.g. if the target directory already exists as an object. For an automated process, a more robust approach would be to use rsync.
I don't know if its possible to create an empty folder with gsutil. For that, use the console's Create Folder button.
You cannot create folders with gsutil as gsutil does not support it (workaround see below).
However, it is supported via:
UI in browser
write your own GCS client (we have written our own custom client which can create folders)
So even if Google has a flat name space structure as the other answer correctly points out, it still has the possibility to create single folders as individual objects. Unfortunately gsutil does not expose this.
(Ugly) workaround with gsutil: Add a dummy file into a folder and upload this dummy file - but the folder will be gone once you delete this file, unless other files in that folder are present.
Copied from Google cloud help:
Copy the object to a folder in the bucket
Use the gsutil cp command to create a folder and copy the image into it:
gsutil cp gs://my-awesome-bucket/kitten.png gs://my-awesome-bucket/just-a-folder/kitten3.png
This works.
You cannot create a folder with gsutil on GCS.
But you can copy an existing folder with gsutil to GCS.
To copy an existing folder with gsutil to GCS, a folder must not be empty and the flag "-r" is needed as shown below otherwise you will get error if a folder is empty or you forgot the flag -r:
gsutil cp -r <non-empty-folder> gs://your-bucket
// "-r" is needed for folder
You cannot create an empty folder with mb
Related
I have a google cloud bucket which has 7 subfolders named subset0 to subset7. I want to copy all of them to google colab. Right now I am using code like
!gsutil -m cp -r gs://mybucket/datafolder/subset0 datafolder/
to copy each folder separately. I am not sure how I can write a for loop to copy all folders without repeating the same line 7 times. Thanks a lot!!
As #FerreginaPelona mentioned in the comments, you can use gsutil -m cp -r gs://mybucket/datafolder/subset* datafolder/ if your gs://mybucket/datafolder/ only contains subset0 to subset7 and no other subfolders.
However, if your source bucket path has other subfolders and you only want to specify your needed subfolders, you may put your subfolders in a list and use a for loop as shown below.
from google.colab import auth
auth.authenticate_user()
# Download the file from a given Google Cloud Storage bucket.
subfolder_list = ["subset0","subset1","subset2","subset3","subset4","subset5","subset6","subset7"]
for subfolder in subfolder_list:
!gsutil -m cp -r gs://mybucket/datafolder/{subfolder} /datafolder
gsutil mv gs://bucket/gamelists/ gs://bucket/games/
I have folders of media files inside the gamelists and want to rename the folder to games. I did the following command and it did not change anything.
Is there any way that I can just change the main folders?
As suggested and referred , by Doug Stevenson in the comment above please follow recommendations to prevent the issue.
The gsutil mv command allows you to move data between your local file system and the cloud, move data within the cloud, and move data between cloud storage providers.
You can use the gsutil mv command to rename all objects with a given prefix to have a new prefix.
gsutil mv gs://my_bucket/oldprefix gs://my_bucket/newprefix
If you have a large number of files to move you might want to use the gsutil -m option, to perform a multi-threaded/multi-processing move:
gsutil -m mv gs://my_bucket/oldprefix gs://my_bucket/newprefix
Reference Document
I have the following questions.
I got access to a cloud bucket to my email id. Now I want to download the whole bucket folder into a local directory on ubuntu. I installed gsutil from pip.
Is the command correct?
gsutil rsync gs://bucket_name .
the command seems generic how do I give my gmail credentials to it? The file is 1TB of size and I am allowed to download only once so I want to get the command right.
The command is correct if you want your current directory to mirror the contents of the bucket (including deleting any files on the right not found on the left). If you merely want to copy, you might want cp -r instead.
Here are the current docs on how to authenticate when running a standalone gsutil. It looks like you just need to run gsutil config.
I am trying to copy the files and folders from google cloud storage to vm machine using gsutil command but i need to exclude few of the folders in the gcs bucket while copying to vm, i tried searching for the options but i couldn't find it, please help if anyone knows the command for this.
Thanks in-advance,
For this you can use a command like:
gsutil -m rsync -r -x '^dir3/*' gs://bucket
this should retrieve all objects located on the bucket, except objects beginning with dir3 (files not located in dir3 directory in your example).
Here you can find more details about the rsync command
How we can create the folder using gsutil command. I am using Bashoperator in airflow where I need to use the gsutil Bash command, Bucket is already created I want to create a folder inside bucket.
I already tried with below command but It's not working for me.
$ gsutil cp <new_folder> gs://<bucketname>/
I am getting error - CommandException: No URLs matched: new_folder
Google Storage does not work like a regular file system as in Windows/Linux. It appears to have folders but in the background it behaves as it does not. It only allows us to create "folders" so we can organize better and for our comfort.
If you want to save data in specific folders from gsutil try this.
gsutil cp [filetocopy] gs://your-bucket/folderyouwant/your-file
It will store the item in a "folder".
Check this link for more gsutil cp information.
This is the logic behind Google Cloud Storage "Folders".
gsutil will make a bucket listing request for the named bucket, using
delimiter="/" and prefix="abc". It will then examine the bucket
listing results and determine whether there are objects in the bucket
whose path starts with gs://your-bucket/abc/, to determine whether to
treat the target as an object name or a directory name. In turn this
impacts the name of the object you create: If the above check
indicates there is an "abc" directory you will end up with the object
gs://your-bucket/abc/your-file; otherwise you will end up with the
object gs://your-bucket/abc.
Here you have more interesting information about this if you want.
Apparently the ability to create an empty folder using gsutil is a request that has been seen a few times but not yet satisfied. There appears to be some workarounds by using API that can then be scripted. The GitHub issue for the ability to create empty folders through scripting can be found here:
https://github.com/GoogleCloudPlatform/gsutil/issues/388
You cannot create or copy an empty folder to GCS with gsutil as far as I researched and tried about it. Yes, it's inconvenient somehow.
A folder must not be empty to be created or copied to GCS and don't forget the flag "-r" to create or copy a folder to GCS as shown below otherwise you will get error if a folder is empty or you forgot the flag -r:
gsutil cp -r <non-empty-folder> gs://your-bucket
// "-r" is needed for folder