nc hang in ubuntu container

[zhoupro]

use nc -q 1

nnoremap y :call system('nc -q 1 host.docker.internal 8377', @0)

[wincent]

Just to clarify, is that an example of a command which hangs, or a command which avoids a hang?

[zhoupro]

when use nc hostip hostport; the command will hang. add "-q 1", the command will exit after 1 sec.
I use nc [v1.10-41.1]. I also found nc is so mess.

[wincent]

Maybe try the -N switch as suggested in the docs?