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ifstat(8) [centos man page]

IFSTAST(8)						      System Manager's Manual							IFSTAST(8)

ifstat - handy utility to read net interface statistics SYNOPSIS
ifstat [options] [interface [interface [...]]] DESCRIPTION
This manual page documents briefly the ifstat command. ifstat neatly prints out network interface statistics. The utility keeps records of the previous data displayed in history files and by default only shows difference between the last and the current call. Location of the history files defaults to /tmp/.ifstat.u$UID but may be overridden with the IFSTAT_HISTORY environment variable. OPTIONS
-h, --help Show summary of options. -V, --version Show version of program. -a, --ignore Ignore the history file. -d, --scan=SECS Sample statistics every SECS second. -e, --errors Show errors. -n, --nooutput Don't display any output. Update the history file only. -r, --reset Reset history. -s, --noupdate Don't update the history file. -t, --interval=SECS Report average over the last SECS seconds. -z, --zeros Show entries with zero activity. SEE ALSO
ip(8) AUTHOR
ifstat was written by Alexey Kuznetsov <>. This manual page was written by Petr Sabata <>. IFSTAST(8)

Check Out this Related Man Page

RTMON(8)						      System Manager's Manual							  RTMON(8)

rtmon - listens to and monitors RTnetlink SYNOPSIS
rtmon [ options ] file FILE [ all | LISTofOBJECTS ] DESCRIPTION
This manual page documents briefly the rtmon command. rtmon listens on netlink socket and monitors routing table changes. rtmon can be started before the first network configuration command is issued. For example if you insert: rtmon file /var/log/rtmon.log in a startup script, you will be able to view the full history later. Certainly, it is possible to start rtmon at any time. It prepends the history with the state snapshot dumped at the moment of starting. OPTIONS
rtmon supports the following options: -Version Print version and exit. help Show summary of options. file FILE [ all | LISTofOBJECTS ] Log output to FILE. LISTofOBJECTS is the list of object types that we want to monitor. It may contain 'link', 'address', 'route' and 'all'. 'link' specifies the network device, 'address' the protocol (IP or IPv6) address on a device, 'route' the routing table entry and 'all' does what the name says. -family [ inet | inet6 | link | help ] Specify protocol family. 'inet' is IPv4, 'inet6' is IPv6, 'link' means that no networking protocol is involved and 'help' prints usage information. -4 Use IPv4. Shortcut for -family inet. -6 Use IPv6. Shortcut for -family inet6. -0 Use a special family identifier meaning that no networking protocol is involved. Shortcut for -family link. USAGE EXAMPLES
# rtmon file /var/log/rtmon.log Log to file /var/log/rtmon.log, then run: # ip monitor file /var/log/rtmon.log to display logged output from file. SEE ALSO
ip(8) AUTHOR
rtmon was written by Alexey Kuznetsov <>. This manual page was written by Michael Prokop <>, for the Debian project (but may be used by others). RTMON(8)
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