Hi all,i would like to compile and upload my sketch to my NodeMCU board but i couldn't figure out board type parameter,what should i write for my board type.
I tried this but no luck 
arduino --board esp8266:nodemcuv1:CpuFrequency=80 --port /dev/ttyUSB0 --upload test.ino
From https://github.com/arduino/Arduino/blob/master/build/shared/manpage.adoc:
--board package:arch:board[:parameters]
The esp8266 core has package name esp8266 and architecture name esp8266 so you're missing one of those. Try:
arduino --board esp8266:esp8266:nodemcuv1:CpuFrequency=80 --port /dev/ttyUSB0 --upload test.ino
Also, I don't know which version of the esp8266 package you're using but in the most recent there is no "nodemcuv1" board. There is nodemcu and nodemcuv2.