Can i kill localhost process ?

[zababurinsv]

In termux i run on port 8083 node.

In ubuntu i use in package.json this script:

but in termux it is not working.

"kill": "kill $(lsof -t -i:8083)"
I get this eror

sh: 1: kill: Usage: kill [-s sigspec | -signum | -sigspec] [pid | job]... or
kill -l [exitstatus]
npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! radio@1.0.0 kill: `kill $(lsof -t -i:8083)`
npm ERR! Exit status 2
npm ERR!
npm ERR! Failed at the radio@1.0.0 kill script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.```

npm ERR! A complete log of this run can be found in:
npm ERR!     /data/data/com.termux/files/home/.npm/_logs/2020-07-15T12_44_45_322Z-debug.log

And two variant

"kill": "fuser -k 8083/tcp && echo 'Terminated' || echo 'Nothing thing was running on the PORT'"

radio@1.0.0 kill2 /data/data/com.termux/files/home/server-radio
> fuser -k 8083/tcp && echo 'Terminated' || echo 'Nothing was running on the PORT'
Cannot open protocol file "/proc/net/tcp": Permission denied
Nothing was running on the PORT

[ghost]

You can kill processes launched within Termux but only if you know their pid or name.

On new Android versions you can't read /proc/net/tcp due to SELinux, so utilities using it will not work without root. Consider using alternate ways of getting pid of processes, e.g. through pidfiles or through matching process name. start-stop-daemon can deal with that.