---
name: "ipsetcat"
section: "1"
platform: "linux"
package: "libcorkipset-utils"
version: "1.1.1+git20171111.6842a63-2+b2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/ipsetcat"
---

# ipsetcat(1)

utility of libcorkipset library

## NAME

ipsetcat - utility of libcorkipset library

## SYNOPSIS

**ipsetcat** \[*options*\] *\<input filename\>*

## DESCRIPTION

Prints out the (non-sorted) contents of a binary IP set file.

## OPTIONS

-

  \<input filename\>

- The binary set file to read.

  To read from stdin, use "-" as the

-

  filename.

**--output=**\<filename\>, **-o** \<filename\>

- Writes the contents of the binary IP set file to \<filename\>.

  If this

-

  option isn't given, then the contents will be written to standard output.

**--networks**, **-n**

-

  Where possible, we group the IP addresses in the set into CIDR network blocks.  For dense sets, this can greatly reduce the amount of output that's generated.

**--verbose**, **-v**

- Show progress information about the files being read and written.

  If

-

  this option is not given, the only output will be any error messages that occur.

**--help**

-

  Display this help and exit.

### Output format:

- The output will contain one IP address or network per line.

  If you give

-

  the "--networks" option, then we will collapse addresses into CIDR networks where possible.  CIDR network blocks will have one of the following formats:

-

  x.x.x.x/cidr xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx/cidr

-

  Individual IP addresses will have one of the following formats:

-

  x.x.x.x xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx

-

  Note that we never include a */32* or */128* suffix for individual addresses, even if you've requested CIDR networks via the "--networks" option.

- Please note that the output is UNSORTED.

  There are no guarantees made

-

  about the order of the IP addresses and networks in the output.