OP
/a/b/c/d/../../../e  -> /a/e
/a/../b/./c//d       -> /b/c/d
../scripting         -> ../scripting
./tmp                -> ./tmp
/tmp/../../../tmp    -> /tmp
Cwd::abs_path
/a/b/c/d/../../../e  -> /a/b/c/d/../../../e does not resolve
/a/../b/./c//d       -> /a/../b/./c//d does not resolve
../scripting         -> /home/scripting
./tmp                -> /home/merijn/tmp
/tmp/../../../tmp    -> /tmp
Path::Tiny::path
/a/b/c/d/../../../e  -> /a/b/c/d/../../../e
/a/../b/./c//d       -> /a/../b/c/d
../scripting         -> ../scripting
./tmp                -> tmp
/tmp/../../../tmp    -> /tmp/../../../tmp
File::Spec::canonpath
/a/b/c/d/../../../e  -> /a/b/c/d/../../../e
/a/../b/./c//d       -> /a/../b/c/d
../scripting         -> ../scripting
./tmp                -> tmp
/tmp/../../../tmp    -> /tmp/../../../tmp