Running continuous processes or functions on a virtual machine is essential for any large development process.
Here's how to continuously run a process on Ubuntu, disconnect and then reconnect to access a process' logs.
Step 1) Start screen
This might be already installed, check with: screen --version
If not, install with one of these commands (OS specific)
yum install screen
apt install screen
Open a screen session:
screen
Step 2) Run your program with &
I'm running a validator in a GCP ubuntu virtual machine so my start command looks like:
sudo mortar server --data-dir ./data-dir --chain genesis.json --libp2p 0.0.0.0:1478 --nat IP-ADDRESS --seal --price-limit 1 &
Just make sure to add & to the end of whatever command you use. This is let the program to keep running even after you quit the shell session.
Step 3) Disconnect your SSH session
You can do this by closing the shell window
Step 4) Reconnect
Resume screen session: screen -r
You should now see the output of the process logs in real time
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