Is it possible to strace the builtin commands to Bash?
Inspired by this question, titled: When are the built-in commands loaded to memory, while attempting to answer this I tried the following command and was a bit surprised that I couldn’t run it:
strace
Why is there no apparent clone or fork in simple bash command and how it’s done?
Consider the following (with sh being /bin/dash):
Connecting to IP 0.0.0.0 succeeds. How? Why?
We are serving a port on localhost and want to check in another process if the port is available. Due to a bug in our code, it is actually trying to connect to the IP 0.0.0.0:<port>, and for some reason it succeeds — as strace proves: