问题
Seems so simple, but not getting the syntax right. I want to know if a file exists in my s3 bucket using wildcards. Something like
aws s3 ls s3://my-bucket/folder/*myfile*
The goal is to see if a file called 2016_myfile.txt or a file called 2011_myfile.csv exists within this bucket.
If I run the command, it doesn't return anything even though I know this file exists there.
回答1:
(re-drafted from comment as it appears this answered the question)
I myself tried, and failed to use wildcards in the aws-cli, and according to the docs, this is not currently supported. Simplest (though least efficient) solution would be to use grep:
aws s3 ls s3://my-bucket/folder/ | grep myfile
Alternatively, you could write a short python/other script to do this more efficiently (but not in a single command)
回答2:
S3 doesn't support wildcard listing. You need to list all the files and grep it.
aws s3 ls s3://mybucket/folder --recursive
Above command will give the list of files under your folder, it searches the files inside the folder as well. Just grep your file name
aws s3 ls s3://mybucket/folder --recursive |grep filename
Suppose if you want to find multiple files, create a regular expression of those and grep it.
回答3:
s3cmd also works for me with grep.
s3cmd ls --recursive s3://mybucket/folder/folder2 | grep filename
回答4:
For Windows User:
aws s3 ls s3://my-bucket/folder/ | findstr myfile
来源：https://stackoverflow.com/questions/39857802/check-if-file-exists-in-s3-using-ls-and-wildcard