UNIX for Dummies Questions & Answers

I am trying to use the forever command. I can get it to work if I do not use the w option to watch for changes and cause an automatic restart on a change to the contents of the directory being watched.

I would really like to use the watch option. Is this option fully implemented? here is an example of the command that does not work.

Code:

forever start -a -m 5 -l fvr.log -o /home/pi/ir_proxy/out.log -e /home/pi/ir_proxy/err.log -w /home/pi/ir_proxy/app /home/pi/ir_proxy/app/main.js &

If I leave out the w option and the directory name the command works.

Also can I watch multiple Directories, and if so what would the command look like?

Any help/advice appreciated

I don't know this forever command (i know there was a repeat keyword in csh but i haven't used csh in a very long time) but it can be constructed very simply:

Code:

while : ; do
     <your command here>
     <another command here>
     [...]
     sleep <interval>
done

This should cover for your question about multiple directories to watch too, no?

I hope this helps.

bakunin

What is your OS and version?

Hi.

This might be the non-standard command forever to which the OP is referring ... cheers, drl

https://github.com/foreverjs/forever

https://www.npmjs.com/package/forever

If you are on Linux, how about inotify / inotifywait ?

It is quite simple and has some nice examples in the manual.
With minimal change a manual example can serve your point.

Can also be implemented in various programming languages using the API.
So perhaps instead of restarting the app, it can be changed or one should say fixed

Hope that helps
Regards
Peasant.