Get lowest memfree for given analysis date

atopsar -r /var/log/atop/atop_20240703 -m -R 1 | awk 'NR<7{print $0;next}{print $0| "sort -k 3,4"}' | head -11

• atopsar : atop’s system activity report.
• -r /var/log/atop/atop_20240703 : Log file to use.
• -m : Memory- and swap-occupation
• -R 1 : Summarize 1 sample into one sample. Log file contains samples of 10 minutes, so this will summarize each sample. -R 6 will summarize one sample per 60 minutes.
• awk 'NR<7{print $0;next}{print $0| "sort -k 3,4"}' : For number of input records (NR) less than 7, print the input record ($0), go to the next input record and repeat the {print $0} pattern until the end is reached, then execute the END rule. The END rule in this case is {print $0| "sort -k 3,4"}, it prints the remaining input records after piping them through the "sort -k 3,4" command. This avoids sorting the first 7 lines of the atopsar command.
• head -11 : Get the top 11 lines of output.

Get top 3 memory processes for given analysis date

atopsar -G -r /var/log/atop/atop_20240710