Working with the filesystem

Julia provides a variety of functions for reading folders and processing files natively, and we will meet some of these in the next chapter. However, as a tester, I have included a few examples here.

I got an error after exiting the following process, so had wrapped it in a try/catch block to suppress the output of the error – note that this was after the run() call had succeeded:

#=
Running the following gave a FAILED Process error on exit,
julia> cd(string(ENV["HOME"],"/MJ2/Chp05/Code05"));
julia> run(`wc $(readdir())`)
Wrapping the run() function it in a try/catch block will trap the 
error.
=#
julia> try run(`wc $(readdir())`) catch end
   3424   11555  152017 Chp05.ipynb
     791    2796   20108 Chp05.jl
    1843   10493   67627 Chp05.md
wc: Scripts: read: Is a...