Small blog about system administration.

Collect and Report System Activity

The sar command is used to collect, report, and save system activity information.
To see network counter, enter:


# sar -n DEV | more

To display the network counters from the 24th:


# sar -n DEV -f /var/log/sa/sa24 | more

You can also display real time usage using sar:


# sar 4 5

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