To install the Logwatch tool on a FreeBSD system, you can use the pkg command. Logwatch is available in the FreeBSD package repository, so you can install it using the following command:
pkg install logwatch
This will install the Logwatch package and all its dependencies.
Once Logwatch is installed, you can use the logwatch command to generate reports of system activity. By default, Logwatch will generate a report for the previous day, but you can specify a different time period using the --range option.
For example, to generate a report for the previous week, you can use the following command:
logwatch --range 'last 7 days'
To generate a report for the current month, you can use the following command:
logwatch --range 'this month'
You can also specify a specific date range using the --range option. For example, to generate a report for the period from January 1st to January 31st, you can use the following command:
logwatch --range '1/1/2022 to 1/31/2022'