Hi@akhtar,
You can copy files from the remote system to the local system using the gcloud command. To denote a file in Cloud Shell, prefix the file name with the string "cloudshell". To denote a local file, prefix the file name with the string "localhost" as shown below.
$ gcloud cloud-shell scp cloudshell:~/REMOTE-DIR localhost:~/LOCAL-DIR
Hope it helps!!
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Thanks!