# phpman > man > nstat(8) [RTACCT(8)](https://www.chedong.com/phpMan.php/man/RTACCT/8/markdown) System Manager's Manual [RTACCT(8)](https://www.chedong.com/phpMan.php/man/RTACCT/8/markdown) ## NAME nstat, rtacct - network statistics tools. ## SYNOPSIS Usage: nstat [ -h?vVzrnasd:t:jp ] [ PATTERN [ PATTERN ] ] Usage: rtacct [ -h?vVzrnasd:t: ] [ ListOfRealms ] ## DESCRIPTION **nstat** and **rtacct** are simple tools to monitor kernel snmp counters and network interface sta‐ tistics. **nstat** can filter kernel snmp counters by name with one or several specified wildcards. Wild‐ cards are case-insensitive and can include special symbols **?** and ***** ## OPTIONS ### -h, --help ### -V, --version Print version ### -z, --zeros Dump zero counters too. By default they are not shown. ### -r, --reset Reset history. ### -n, --nooutput Do not display anything, only update history. ### -a, --ignore Dump absolute values of counters. The default is to calculate increments since the previous use. ### -s, --noupdate Do not update history, so that the next time you will see counters including values accumulated to the moment of this measurement too. ### -j, --json Display results in JSON format. ### -p, --pretty When combined with **--json**, pretty print the output. ### -d, --scan Run in daemon mode collecting statistics. is interval between measurements in seconds. ### -t, --interval Time interval to average rates. Default value is 60 seconds. ## SEE ALSO [lnstat(8)](https://www.chedong.com/phpMan.php/man/lnstat/8/markdown) 27 June, 2007 [RTACCT(8)](https://www.chedong.com/phpMan.php/man/RTACCT/8/markdown)