TLDR
Enter a command. For example: cryptcat, apt cache, aplay, dnf.

ac

 
Print statistics on how long users have been connected. More information: https://www.gnu.org/software/acct/manual/accounting.html#ac.
 
  • Print how long the current user has been connected in hours:
     
    ac
     
  • Print how long users have been connected in hours:
     
    ac --individual-totals
     
  • Print how long a particular user has been connected in hours:
     
    ac --individual-totals {{username}}
     
  • Print how long a particular user has been connected in hours per day (with total):
     
    ac --daily-totals --individual-totals {{username}}
     
  • Also display additional details:
     
    ac --compatibility

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