How to Securely Share Files via Command Line with Transfer.sh

Transfer.sh is a simple, fast, and secure command‑line file‑sharing service that supports encrypted transfers, up to 10 GB per upload, and provides quick upload/download speeds. Files can be shared via URL and support ZIP or Tar compression.

The service works with Linux shells and currently supports the following providers: Amazon S3, Google Drive, Storj, and the local filesystem.

On GitHub, Transfer.sh has received 11.7K stars and 1.2K forks.

Basic Usage

Upload a file:

$ curl --upload-file ./hello.txt https://transfer.sh/hello.txt

Encrypted upload:

$ cat /tmp/hello.txt | gpg -ac -o- | curl -X PUT --upload-file "-" https://transfer.sh/test.txt

Download and decrypt:

$ curl https://transfer.sh/1lDau/test.txt | gpg -o- > /tmp/hello.txt

Upload to VirusTotal for scanning:

$ curl -X PUT --upload-file nhgbhhj https://transfer.sh/test.txt/virustotal

Delete a file:

$ curl -X DELETE <X-Url-Delete-Response-Header-URL>

Set maximum download count (e.g., 1 download):

$ curl --upload-file ./hello.txt https://transfer.sh/hello.txt -H "Max-Downloads: 1"

Set maximum retention days (e.g., 1 day):

$ curl --upload-file ./hello.txt https://transfer.sh/hello.txt -H "Max-Days: 1"