This code works, but I want to refine it:# =======================# Dir Walk## This will recursively walk a directory# ========================function dirwalk(path::AbstractString, fn::Function)  content = readdir(path)  for c in content    p = joinpath(path, c)    if isdir(p)      dirwalk(p, fn)    elseif isfile(p)      fn(p)    end  endend
Recursively walk directories with a callback function
recursion;callback;julia;file system