I am using the aws cli to list the files in an s3 bucket using the following command (documentation):
aws s3 ls s3://mybucket --recursive --human-readable --summarize
This command gives me the following output:
2013-09-02 21:37:53 10 Bytes a.txt
2013-09-02 21:37:53 2.9 MiB foo.zip
2013-09-02 21:32:57 23 Bytes foo/bar/.baz/a
2013-09-02 21:32:58 41 Bytes foo/bar/.baz/b
2013-09-02 21:32:57 281 Bytes foo/bar/.baz/c
2013-09-02 21:32:57 73 Bytes foo/bar/.baz/d
2013-09-02 21:32:57 452 Bytes foo/bar/.baz/e
2013-09-02 21:32:57 896 Bytes foo/bar/.baz/hooks/bar
2013-09-02 21:32:57 189 Bytes foo/bar/.baz/hooks/foo
2013-09-02 21:32:57 398 Bytes z.txt
Total Objects: 10
Total Size: 2.9 MiB
However, this is my desired output:
a.txt
foo.zip
foo/bar/.baz/a
foo/bar/.baz/b
foo/bar/.baz/c
foo/bar/.baz/d
foo/bar/.baz/e
foo/bar/.baz/hooks/bar
foo/bar/.baz/hooks/foo
z.txt
How can I omit the date, time and file size in order to show only the file list?
You can't do this with just the aws
command, but you can easily pipe it to another command to strip out the portion you don't want. You also need to remove the --human-readable
flag to get output easier to work with, and the --summarize
flag to remove the summary data at the end.
Try this:
aws s3 ls s3://mybucket --recursive | awk '{print $4}'
Edit: to take spaces in filenames into account:
aws s3 ls s3://mybucket --recursive | awk '{$1=$2=$3=""; print $0}' | sed 's/^[ \t]*//'
Use the s3api with jq (AWS docu aws s3api list-objects):
This mode is always recursive.
$ aws s3api list-objects --bucket "bucket" | jq -r '.Contents[].Key'
a.txt
foo.zip
foo/bar/.baz/a
[...]
You can filter sub directories by adding a prefix (here foo
directory). The prefix must not start with an /
.
$ aws s3api list-objects --bucket "bucket" --prefix "foo/" | jq -r '.Contents[].Key'
foo/bar/.baz/a
foo/bar/.baz/b
foo/bar/.baz/c
[...]
jq Options:
-r = Raw Mode, no quotes in output
.Contents[] = Get Contents Object Array Content
.Key = Get every Key Field (does not produce a valid JSON Array, but we are in raw mode, so we don't care)
Addendum:
You can use pure AWS CLI, but the values will be seperated by \x09
= Horizontal Tab (AWS: Controlling Command Output from the AWS CLI - Text Output Format)
$ aws s3api list-objects --bucket "bucket" --prefix "foo/" --query "Contents[].Key" --output text
foo/bar/.baz/a foo/bar/.baz/b foo/bar/.baz/c [...]
AWS CLI Options:
--query "Contents[].Key" = Query Contents Object Array and get every Key inside
--output text = Output as Tab delimited Text with now Quotes
Addendum based on Guangyang Li Comment:
Pure AWS CLI with New Line:
$ aws s3api list-objects --bucket "bucket" --prefix "foo/" --query "Contents[].{Key: Key}" --output text
foo/bar/.baz/a
foo/bar/.baz/b
foo/bar/.baz/c
[...]
aws s3api list-buckets | jq -r '.Buckets[].Name'
--query 'Contents[].{Key: Key}'
. Then it will be one record per line.
A simple filter would be:
aws s3 ls s3://mybucket --recursive | perl -pe 's/^(?:\S+\s+){3}//'
This will remove the date, time and size. Left only the full path of the file. It also works without the recursive and it should also works with filename containing spaces.
Simple Way
aws s3 ls s3://mybucket --recursive --human-readable --summarize|cut -c 29-
aws s3 ls
outputs such that you'd want to cut on -c32
, not -c29
; not sure if it's my data or a change in output format. (I don't actually have subfolders.) This is true for --human-readable
or plain default output; columns are the same place. But really, there's no need for human-readable in this case. And in either case you'd want to omit the --summarize
. In short, aws s3 ls s3://mybucket | cut -c32-
(and --recursive
only if desired)
My Solution
List only files recursively using aws cli.
aws s3 ls s3://myBucket --recursive | awk 'NF>1{print $4}' | grep .
grep .
- Clear empty lines.
Example: aws s3 ls s3://myBucket
PRE f5c10c1678e8484482964b8fdcfe43ad/
PRE f65b94ad31734135a61a7fb932f7054d/
PRE f79b12a226b542dbb373c502bf125ffb/
PRE logos/
PRE test/
PRE userpics/
2019-05-14 10:56:28 7754 stage.js
Solution: aws s3 ls s3://myBucket --recursive | awk 'NF>1{print $4}' | grep .
stage.js
EDIT: After considering MultiDev's comment, that the previous solution won't work with objects that have spaces in them. I used s3api
instead of s3
aws s3api list-objects --bucket mybucket --prefix myprefix --query 'Contents[].Key' | jq -rc '.[]'
prefix is optional
Using jq
to get the raw elements (keys) from the returned array
Use something like --query 'Contents[].{Key: Key, Size: Size}'
to get more info, then format the output further with jq
OLD Solution: aws s3 ls s3://mybucket --recursive | rev | cut -d" " -f1 | rev
I would suggest not depending on the spacing and fetching the 4th field.
You technically want the last field regardless of which position it was in.
So it's safer to use rev
to your advantage...
rev
reverses the string input char by char
so when you pipe the aws s3 ls
out put to rev
you have everything reversed, including the positions of the fields, so the last field always becomes the first field.
Instead of figuring out where the last field would be, you just rev
, get first, then rev
again because the characters in the field would be in reverse as well.
Example:
2013-09-02 21:32:57 23 Bytes foo/bar/.baz/a
becomes a/zab./rab/oof setyB 32 75:23:12 20-90-3102
then cut -d" " -f1
would retrieve the first field a/zab./rab/oof
then rev
again to get foo/bar/.baz/a
aws s3api list-objects --bucket mybucket --prefix myprefix --query 'Contents[].Key' | jq -rc '.[]'
Simple command would be
aws s3 ls s3://mybucket --recursive --human-readable --summarize |cut -d ' ' -f 8
If you need the timestamp, just update command field values.
An S3 bucket may not only have files but also files with prefixes. In case you use --recursive
it will not only list the files but also just the prefixes. In case you do not care about the prefixes and just the files within the bucket or just the prefixes within the bucket, this should work.
aws s3 ls s3://$S3_BUCKET/$S3_OPTIONAL_PREFIX/ --recursive | awk '{ if($3 >0) print $4}'
awk
's $3
is the size of the file in case of prefix it would be 0
. It could also be that the file is empty so it would skip empty files as well.
How to display only files from aws s3 ls command?
1. Basic command
$ aws s3 ls s3://bucket --recursive
output :
2021-02-10 15:29:02 0 documents/
2021-02-10 15:29:02 18 documents/data/data.txt
2021-03-15 23:35:12 0 documents/data/my code.txt
2. To get only keys from s3 bucket containing spaces also.
$ aws s3 ls s3://bucket --recursive | awk '{ $1=$2=$3=""; print $0}' | cut -c4-
output :
documents/
documents/data/data.txt
documents/data/my code.txt
3. Removing "documents/" from result
$ aws s3 ls s3://bucket --recursive | awk '$0 !~ /\/$/ { $1=$2=$3=""; print $0}' | cut -c4-
output :
documents/data/data.txt
documents/data/my code.txt
For only the file names, I find the easiest to be:
aws s3 ls s3://path/to/bucket/ | cut -d " " -f 4
This will cut the returned output at the spaces (cut -d " "
) and return the fourth column (-f 4
), which is the list of file names.
If your files don't have spaces, then this is the easiest way to do it:
aws s3 ls s3://mybucket | cut -c32-
Output is:
1.txt.gz
2.txt.gz
3.txt.gz
Instead of:
2021-12-15 23:05:44 36 1.txt.gz
2021-12-15 23:05:45 37 2.txt.gz
2021-12-15 23:05:46 39 3.txt.gz
Its just grep to filter by starting symbol. "^-" means line starts with '-' symbol. Directories, on other hand, start with the letter 'd'
ls -Al | grep "^-"
Success story sharing
--human-readable
flag like I specified, then it's $4, not $5.aws s3 ls s3://mybucket --recursive | perl -ne '($key)=$_=~/^[\d\-]+\s+[\d\:]+\s+\d+\s(.+?)$/g; print "$key\n";'
aws s3 ls s3://mybucket --recursive | tr -s ' ' | cut -d' ' -f4
aws s3 ls s3://mybucket | cut -c32-
(optionally add recursive & verify it still works)