diff --git a/.aws/cli/alias b/.aws/cli/alias
index 4c3ac58ae28bcdb4af0fcbb8d695e041023621f8..41e1a51a4b4abba0ff5133fc031d353c7e611241 100644
--- a/.aws/cli/alias
+++ b/.aws/cli/alias
@@ -12,3 +12,4 @@ metadata-region = !python3 << EOF
 du = s3 ls --recursive --human-readable --summarize
 enable_ena = ec2 modify-instance-attribute --ena-support --instance-id
 assume-role = !assume-role
+s3-etag = !f() { aws s3api head-object --bucket "$1" --key "$2" --query 'ETag' --output text | xargs; }; f