tigexp command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

tigexp: command not found

or when using sudo you get the following error message

sudo: tigexp: command not found

Solutions to tigexp: command not found

How To Fix tigexp: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu tigexp is provided by tiger package.

tiger is:

TIGER, or the ’tiger’ scripts, is a set of tools (Bourne shell scripts and C programs) which are used to perform a security audit of different operating systems components. The tools can be both run all at once to generate an audit report of the system and to detect elements that could be fixed when hardening it.

TIGER has one primary goal: report ways the system’s security can be compromised.

Most of the tools are independent, but some of them rely on specialised external security tools such as John the Ripper, Chkroot and integrity check tools (like Tripwire, Integrit or Aide) to execute some tasks.

The same checks are also configured by default to run periodically and detect deviations or unauthorised changes. This makes it possible to used them also as a host intrusion detection mechanism. This review mechanism relies on the use of the cron task scheduler and an email delivery system to report errors and deviations.

This package provides all the security scripts and data files for Linux. A separate package is available providing the scripts for other operating systems so they can be run from a centralised repository.

The Linux scripts incorporate specific checks targetting the Debian OS including: md5sums checks of installed files, location of files not belonging to packages, and analysis of local listening processes.

Alternatives to TIGER available in Debian include lynis and ossec. If you are aiming for a small set of checks, try checksecurity, lsat or yasat.

To fix this problem, we can install more using the command below.

sudo apt-get -y install tiger

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install tiger.

sudo apt -y install tiger

Or if you have aptitude installed you can use the following command.

sudo aptitude install tiger

Summary

In this tutorial we learn how to fix tigexp command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.