---
name: "capinfo"
section: "1"
platform: "linux"
package: "tcpreplay"
version: "2.3.3-1"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/capinfo"
---

# capinfo(1)

print statistics about packet capture files

## NAME

capinfo - print statistics about packet capture files

## SYNOPSIS

**capinfo** *file ...*

## DESCRIPTION

*capinfo* is a tool for displaying statistics about network traffic from files saved with  *[tcpdump(8)](/tcpdump/8.md)* or *snoop(1M)*.

For pcap files, capinfo will display the following information:

	byte order of the capture file

	libpcap version used for packet capture

	capture timezone (usually empty)

	significant figures of timestamps (usually empty)

	snap length: maximum packet size captured

	data link type

	number of packets and bytes

	number of snaplen truncated packets

	timestamp of the first and last packets

For snoop files, capinfo will display the following information:

	snoop version used for packet capture

	data link type

	number of packets and bytes

	number of snaplen truncated packets

	timestamp of the first and last packets

## SEE ALSO

[tcpreplay(8)](/tcpreplay/8.md), [tcpdump(8)](/tcpdump/8.md), snoop(1M), [editcap(1)](/editcap/1.md)

## AUTHORS

Matt Bing Aaron Turner

## AVAILABILITY

The current version is available with the tcpreplay package at:

*http://www.sourceforge.net/projects/tcpreplay/*

## BUGS

None known.

Please send bug reports to tcpreplay-users@lists.sourceforge.net.