await

A tool to check the availability of one or multiple network endpoints.

Features

• small statically linked binary
• minimal memory usage

Installation

wget -O await https://raw.githubusercontent.com/jackcvr/await/refs/heads/main/await && chmod +x ./await

Usage

await <host>:<port>[/<timeout>] [<host>:<port>[/<timeout>] ...] [-- <command>]

Arguments

• <host>:<port>/<timeout>: Specifies the hostname, port, and optional timeout (in seconds).
• --: Separates the list of endpoints from the optional command.
• <command>: The command to execute after all endpoints are connected.

Example

await localhost:22 localhost:80/10 -- ls -la

This command checks the availability of two endpoints:

• localhost:22: waits indefinitely.
• localhost:80: waits for a maximum of 10 seconds.
• if both endpoints become available within their respective timeouts, the ls -la command is executed.

License

MIT