Differences between halt and shutdown

Differences between halt and shutdown 1. in halt-h standard, the power is shut down but the power needs to be manually shut down. Some releases enhance the halt script so that it can turn off the power when halt is executed? Killing an application process? Execute sync system call? After the file system writes, the kernel is stopped. 2. Differences Between shut... halt and shutdown 1. in halt-h standard, the power is shut down but the power must be manually shut down. Some releases enhance the halt script so that it can turn off the power when halt is executed? Killing an application process? Execute sync system call? After the file system writes, the kernel is stopped. 2. the shutdown-h now command can be used to directly shut down and power off the power. 3. the reboot process is almost the same as that of halt? But does it cause host restart? While halt is shut down. Its parameters are similar to those of halt.