friday afternoon

sesssions/2025-08-29-friday-pm.jl

@@ -0,0 +1,20 @@
+# don't do this
+# relative paths are subject to the present working directory
+# the pwd might not match the file's location
+read("../../somefile.txt", String)
+
+# do this instead
+
+@__FILE__ # the path to the currently executing file
+@__DIR__ # the directory of the currently executing file
+
+# to get the parent directory of a file or folder
+# dirname("filename")
+dirname(@__FILE__)
+
+dirname(dirname(@__FILE__))
+
+# don't build up paths as string concatenation because not everybody is doing windows/linux/mac
+joinpath(dirname(dirname(@__FILE__)))
+
+joinpath("path", "next", "etc")