What is the Linux Standards Base (LSB)?

The Linux Standard Base is a specification, maintained and sponsored by the Linux Foundation, with a purpose to deliver interoperability between applications and the Linux operating system. The LSB is a specification that most Linux distributions adhere to. If you have a Linux application that you want to run on several Linux distributions, making your application LSB-compliant will ensure your application is portable to versions of Linux that also adhere to the LSB specification. The LSB version that you want to use depends on the Linux distributions you want your application to run on.