Bash-compare-versions: Difference between revisions
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(Created page with "This is a simplistic way to compare version numbers. This is useful for when commands change over time, and you do not know which or what kind of host will have which version...") |
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</pre> | </pre> | ||
Example: | Example: (show the git branch you are on) | ||
<pre> | <pre> | ||
if [[ $(printf '%s\n2.22\n' $(git --version | sed -n '1s/.* //p') | sort -V) != "2.22" ]]; then | if [[ $(printf '%s\n2.22\n' $(git --version | sed -n '1s/.* //p') | sort -V) != "2.22" ]]; then | ||
echo "Earlier version than cutoff" | echo "Earlier version than cutoff" | ||
git rev-parse --abbrev-ref HEAD | |||
else | else | ||
echo "Later version of cutoff" | echo "Later version of cutoff" | ||
git branch --show-current | |||
fi | fi | ||
</pre> | </pre> | ||
[[Category:bash]] | [[Category:bash]] | ||
Revision as of 08:59, 22 October 2021
This is a simplistic way to compare version numbers. This is useful for when commands change over time, and you do not know which or what kind of host will have which version of something.
echo -e "2.22\n11.3.4" | sort -V 2.22 11.3.4
printf '%s\n2.15\n' $(ldd --version | sed -n '1s/.* //p') | sort -V | head -n 1
printf '%s\n2.22\n' $(git --version | sed -n '1s/.* //p') | sort -V
Example: (show the git branch you are on)
if [[ $(printf '%s\n2.22\n' $(git --version | sed -n '1s/.* //p') | sort -V) != "2.22" ]]; then echo "Earlier version than cutoff" git rev-parse --abbrev-ref HEAD else echo "Later version of cutoff" git branch --show-current fi