Make HTTP Requests Without Curl: Bash /dev/tcp Guide

Wed, 17 Jun 2026 07:01:29 +0000

Imagine you are logged into a remote server, perhaps a highly stripped-down production environment or a minimal Docker container. You need to verify if an internal API is responding or if a specific port is open, but you quickly realize that the usual suspects—curl, wget, and even telnet—are missing. In the world of modern DevOps and system administration, we often take these tools for granted. However, there is a powerful, “hidden” feature built directly into the Bash shell that allows you to communicate over the network using nothing but standard shell commands.

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Make HTTP Requests Without Curl: Bash /dev/tcp Guide