There is a video on how to install it. The DSJobReportDbDriver job runs a job called DSJobReportDb. This job does all the work. You can change this to meet your needs. It writes row counts to hashed files and tables. You can delete one or the other just to get it working. DSJobReportDbDriver has a parameter for job name. Use ALL to get row counts for every job in the project.
There are lots of posts about these jobs. Search for them.
Shelll Script for row count
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