Eiffel: how do I do a system call?

Question

Id like to uncompress a file with bzip2 myFile.bz2 which class do I have to use for that?

I tried to find it into base kernel documentation which made the most sense for me and didn't find it

Answer 1

This works:

    make
        local
            l_env:EXECUTION_ENVIRONMENT
        do
            create l_env
            l_env.system ("bzip2 test.txt")
        end