ip6fmt

Inline formatter for IPv6 Addresses.

I work with IPv6 addresses and frequently find myself wanting to compare, sort, or collect them from text files or log output. This tool munges its stdin to identify IPv6 addresses, reformat them, and pass the results to stdout. Use it like a sed replacer.

Installing a Release

Compiled binaries are released as snaps, which can be installed on most Linux systems via:

Install a stable release with:

$ sudo snap install ip6fmt

Install a release built from master with:

$ sudo snap install ip6fmt --edge

Usage

See the help:

$ ip6fmt -h
ip6fmt
Re-format the IPv6 address from stdin.

USAGE:
    ip6fmt [FLAGS]

FLAGS:
    -b               Surround with brackets
    -c               Compact IPv6 format
    -h, --help       Prints help information
    -V, --version    Prints version information

Some examples:

$ cat /tmp/foo
foo bar
::1 baz
fuz 0:af77::4 fah
boo 4:0:0::27

$ ip6fmt </tmp/foo
foo bar
0000:0000:0000:0000:0000:0000:0000:0001 baz
fuz 0000:af77:0000:0000:0000:0000:0000:0004 fah
boo 0004:0000:0000:0000:0000:0000:0000:0027

$ ip6fmt -b </tmp/foo
foo bar
[0000:0000:0000:0000:0000:0000:0000:0001] baz
fuz [0000:af77:0000:0000:0000:0000:0000:0004] fah
boo [0004:0000:0000:0000:0000:0000:0000:0027]

$ ip6fmt -b -c </tmp/foo
foo bar
[::1] baz
fuz [0:af77::4] fah
boo [4::27]

Building

Dependencies: cargo, rust

To build from source:

$ git clone https://github.com/mypetyak/ip6fmt
$ cd ip6fmt
$ cargo build
$ ./target/debug/ip6fmt -h

Running Tests

To run unit tests:

$ cargo test --all