uniq count

uniq count: a task in scrivania-harbor (Harbor dataset). Hi! Write into users.txt the user names found in logs/audit.log, no duplicates, alphabetical, one per line (name only, without "user="), please.

The task

Hi! Write into users.txt the user names found in logs/audit.log, no duplicates, alphabetical, one per line (name only, without "user="), please.

Part of efederici/scrivania-harbor.