@Jhon-Piñeres
The answer is probably found elsewhere since you asked your question, but because this was the first thread i found i think i post my solution here:

Command for shutting down:
shutdown /s /t 120

I choose 2 Minutes because thats the a longer time i need to leave but so normaly enough time to stop if i forgot something.

Off Command:
shutdown /a

Now i can tell my alexa to shut down my pc, by switching on shutdown, but i have also 2 minutes to cancel the shutdown by telling alexa to turn off shutdown.

Hello,
because of a stupid mistake i had to reinstall my raspberry pi.

I used these instructions: https://docs.triggercmd.com/#/./InstallRaspberryPi

But if i try to install with
sudo apt install ./triggercmdagent_1.0.1_all.deb
i get the follogwing errors:

Get:1 /home/hannibal/downloads/triggercmdagent_1.0.1_all.deb triggercmdagent all 1.0.1 [22.2 MB]
(Reading database ... 91248 files and directories currently installed.)
Preparing to unpack .../triggercmdagent_1.0.1_all.deb ...
Unpacking triggercmdagent (1.0.1) ...
dpkg-deb (subprocess): decompressing archive '/home/hannibal/downloads/triggercmdagent_1.0.1_all.deb' (size=22246140) member 'data.tar': lzma error: compressed data is corrupt
dpkg-deb: error: <decompress> subprocess returned error exit status 2
dpkg: error processing archive /home/hannibal/downloads/triggercmdagent_1.0.1_all.deb (--unpack):
 cannot copy extracted data for './usr/share/triggercmdagent/app/src/node.exe' to '/usr/share/triggercmdagent/app/src/node.exe.dpkg-new': unexpected end of file or stream
Errors were encountered while processing:
 /home/hannibal/downloads/triggercmdagent_1.0.1_all.deb
Notice: Download is performed unsandboxed as root as file '/home/hannibal/downloads/triggercmdagent_1.0.1_all.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
Error: Sub-process /usr/bin/dpkg returned an error code (1)

If i read that right the installation file is corrupted, so i tried several times to download the file, but the error is the same every time.

So either the file is corrupted or i am doing something wrong, anyone any idea how what to do?

I hope this is all ok to read, english is not my strong side.

Greetings Hannibal

@Jhon-Piñeres
The answer is probably found elsewhere since you asked your question, but because this was the first thread i found i think i post my solution here:

Command for shutting down:
shutdown /s /t 120

I choose 2 Minutes because thats the a longer time i need to leave but so normaly enough time to stop if i forgot something.

Off Command:
shutdown /a

Now i can tell my alexa to shut down my pc, by switching on shutdown, but i have also 2 minutes to cancel the shutdown by telling alexa to turn off shutdown.