implement a 'watch' command so we can watch the output of a karaf command like
the unix 'watch' mechanism
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Key: KARAF-1196
URL: https://issues.apache.org/jira/browse/KARAF-1196
Project: Karaf
Issue Type: New Feature
Reporter: james strachan
watch in unix lets you watch the output of a command (kinda like 'top' on unix)
http://en.wikipedia.org/wiki/Watch_(Unix)
it'd be great to be able to do that in karaf too.
e.g.
{code}
karaf@foo> watch -n 1 --clear "list | grep foo"
{code}
then the screen would keep refreshing every second showing the output of the
command until the user hit q/enter/ctrl-c or something. So it'd behave a little
like unix commands like top/vmstat allowing you on the console to watch things
change (e.g. things startup or stop or whatever).
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