Get the latest version of a library installed in a linux system

libver.sh

#!/bin/bash

# Get the latest version of a library installed in a linux system.
# Usage: ./libver.sh lib
# Example: ./libver.sh cuda
# Explain: search for lib$lib.so in the system, then extract version from name.
#  This assumes that the library "lib" can be found under /usr as: /path/to/liblib.so.x.y.z

if [ -z "$1" ]; then
    >&2 echo "Usage: $0 lib"
    exit 1
fi
lib="$1"

set -o pipefail
find /usr -name "lib$lib.so*" | sed -e "s/.*lib$lib.so.\(.*\)/\1/g" | grep "^[0-9.]*$" | sort | tail -n 1