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logikal/ntp_drift_reporter.sh

Created November 21, 2018 03:24
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  1. logikal created this gist Nov 21, 2018.
    15 changes: 15 additions & 0 deletions ntp_drift_reporter.sh
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    Original file line number Diff line number Diff line change
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    #!/usr/bin/env bash
    # finds the maximum clock drift in the last 30 days
    # using the stats files kept in /var/log/ntpstats

    # We need somewhere temporary to keep our concatenated results
    TMPFILE=$(mktemp) || exit 1

    FILELIST=$(find /var/log/ntpstats/ -mtime -31 -type f)

    cut -d' ' -f 5 $FILELIST| sort -g > $TMPFILE

    MIN_OFFSET=$(head -n 1 $TMPFILE)
    MAX_OFFSET=$(tail -n 1 $TMPFILE)

    echo "$MIN_OFFSET $MAX_OFFSET"