[SOLVED] The best way to check that we have require version software in bash script

Issue

Which the best way to check that we have minimum require version software in bash script. E.g. git 2.16.2

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Solution

git provides its version info like this:

$ git --version
git version 2.11.0

GNU sort understands version numbers and can sort them:

$ (echo min version 2.16.3; git --version) | sort -Vk3
git version 2.11.0
min version 2.16.3
$ (echo min version 2.9.3; git --version) | sort -Vk3
min version 2.9.3
git version 2.11.0

We can combine this to make a test:

if (echo a version 2.16.3; git --version) | sort -Vk3 | tail -1 | grep -q git
then
    echo "Good enough."
else
    echo "Not good"
fi

Answered By - John1024

Answer Checked By - Terry (WPSolving Volunteer)