Check status of SQL Server Service

systemctl status mssql-server

Stop the SQL Server Service

sudo systemctl stop mssql-server

Start the SQL Server Service

sudo systemctl start mssql-server

Restart the SQL Server Service

sudo systemctl restart mssql-server

Disable the SQL Server Service

sudo systemctl stop mssql-server
 
sudo systemctl disable mssql-server

Enable the SQL Server Service

sudo systemctl enable mssql-server
 
sudo systemctl start mssql-server

(You can get a script to simplify these commands here.)

Log files are UTF-16 encoded. If needed (e.g., for 'more' or 'less' commands), you can encode in UTF-8 as follows:

sudo iconv –f UTF-16LE –t UTF-8 <errorlog> -o <output errorlog file>