Execute powershell command in foreach loop

Question

I am trying to execute aws s3 cp command in Powershell. I have a list of files which I defined in an array-like below.

$filearray = ("file1.txt", "file2.txt", "file3.txt", "file4.txt", "file5.txt")

Now when I am trying to copy these files from s3 using aws s3 cp command nothing works.

$filearray | foreach { "aws s3 cp s3://<bucket_name/path_to_file/$_ . --sse aws:kms --sse-kms-key-id 12345-abcxzd" }

I tried below as well. But it didn't work. Can someone point out the mistake I am doing?

foreach ($element in $filearray) { "aws s3 cp s3://<bucket_name/path_to_file/$element . --sse aws:kms --sse-kms-key-id 12345-abcxzd" }

Now I have added variables to my aws command also which will be like below when the loop executes.

$kms_key_option="--sse aws:kms --sse-kms-key-id 12345-abcxzd" $s3_location="s3://<bucket_name/path_to_file/"

foreach ($element in $filearray) { & aws s3 cp $s3_location/$element $current_location $kms_key_option }

But there is a catch in this. Only the first 2 variables in command block work as variables rest 2 do not work as variables. i.e. $current_location $kms_key_option So the problem statement is changing here a little bit.

Note: I have aws cli installed on my windows machine it works with normal command but it doesn't work in foreach loop.

avarice · Accepted Answer · 2020-02-13 16:44:42Z

2

You are looking for the & operator.

foreach ($element in $filearray) { & "aws s3 cp s3://<bucket_name/path_to_file/$($element) . --sse aws:kms --sse-kms-key-id 12345-abcxzd" }

edited Feb 13, 2020 at 16:44

answered Feb 13, 2020 at 16:21

avarice

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2 Comments

Shailesh Sutar Over a year ago

This works somewhat but throws CommandNotFoundException in my case for aws s3 cp command.

Shailesh Sutar Over a year ago

I was able to get it working after resolving the CommandNotFoundException

TechDufus · Accepted Answer · 2020-02-13 16:23:21Z

0

I'd say try it without the Quotes in the foreach loops?

foreach ($element in $filearray) {
    aws s3 cp s3://<bucket_name/path_to_file/$element . --sse aws:kms --sse-kms-key-id 12345-abcxzd
}

answered Feb 13, 2020 at 16:23

TechDufus

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1 Comment

Shailesh Sutar Over a year ago

I tried this but it didn't work. Though the command execution is successful it does not achieve copy operation.

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