no mention of /dev/tcp?!
yes, it looks like a device node in /dev, but it's really a pure bashism for opening tcp connections to arbitrary hosts and ports
yes, it looks like a device node in /dev, but it's really a pure bashism for opening tcp connections to arbitrary hosts and ports
I've since implemented a very bare-bones and very featureless IRC client using /dev/tcp and bash.
https://github.com/dylanaraps/birch
I will get around to it eventually. The one hurdle I want to get over before writing a piece about it is the handling of binary data using bash.
This is something a little tricky to do with bash but it'd allow for a 'wget'/'curl' like program without the use of anything external to the shell (no HTTPS of course).
I want to really understand the feature before I write about it though in the meantime I could just write a reference to the syntax/basic usage. :)
I came here to say the exact same thing. This is my favourite thing most people don't know exists in Bash.