bash parse semantic version

demo.sh

#!/bin/bash

value=v1.20.03-xx7

semver=$(echo "$value" | sed -r "s/^v?([0-9]+)\.([0-9]+)\.([0-9]+)(.*)$/\1 \2 \3 \4/") ; semver=( $semver )

echo "result: ${semver[0]} ${semver[1]} ${semver[2]} ${semver[3]}"

The sed command is used to set a space separator between each part. The ( ) generates an array composed of each part.