Github user kemitix commented on a diff in the pull request:
https://github.com/apache/brooklyn-docs/pull/266#discussion_r213965368
--- Diff: guide/blueprints/example_yaml/vanilla-bash-netcat-w-client.yaml
---
@@ -66,7 +66,7 @@ services:
name: sayHiNetcat
description: Echo a small hello string to the netcat entity
command: |
- echo $message | nc $TARGET_HOSTNAME 4321
+ echo $message | nc -N $TARGET_HOSTNAME 4321
--- End diff --
Struggling to find how you would install an updated version of netcat on
MacOS that would support this command. The problem is that on some platforms
the `nc` command doesn't close the channel when `echo` terminates, which
prevents the pipeline command from terminating.
Would a suitable solution be to include both options with one of them
commented out and a comments saying `# MacOS` and `# Linux`?
e.g.
```yaml
# Uncomment the appropriate command for your operating system
# Linux
# echo $message | nc -N $TARGET_HOSTNAME 4321
# MacOS
# echo $message | nc $TARGET_HOSTNAME 4321
```
---
