Search and replace the version number based on input parameters to the shell script

update_ver.sh

#!/bin/sh

# This script will update the specified version for all brands to
# X.Y.Z, where X, Y and Z are input parameters specified by the user.
# Example: `$ sh change_version.sh 1.0.0 2.1.0`

if [ $# -lt 2 ]; then
    echo "2 arguments are expected"
    exit 1
fi

IFS=. read prevX prevY prevZ <<< $1
IFS=. read newX newY newZ <<< $2

find . -type f -exec sed -i "s@$prevX\([\.,_]\)$prevY\1$prevZ@$newX\1$newY\1$newZ@g" {} +