jacksum software package provides computes checksums, CRCs and message digests, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install jacksum
jacksum is installed in your system.
Make ensure the jacksum package were installed using the commands given below,
$ sudo dpkg-query -l | grep jacksum *
You will get with jacksum package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Utilities |
| Package | jacksum |
| Version | 1.7.0-2 |
| Description | computes checksums, CRCs and message digests |
| Sub Section | Utils |