...is good boundaries.
~$ python Python 3.7.4 (v3.7.4:e09359112e, Jul 8 2019, 14:54:52) [Clang 6.0 (clang-600.0.57)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import os >>> os.EX_OK 0 >>> dir(os) ['CLD_CONTINUED', 'CLD_DUMPED', 'CLD_EXITED', 'CLD_TRAPPED', 'DirEntry', 'EX_CANTCREAT', 'EX_CONFIG', 'EX_DATAERR', 'EX_IOERR', 'EX_NOHOST', 'EX_NOINPUT', 'EX_NOPERM', 'EX_NOUSER', 'EX_OK', 'EX_OSERR', 'EX_OSFILE', 'EX_PROTOCOL', 'EX_SOFTWARE', 'EX_TEMPFAIL', 'EX_UNAVAILABLE', …
First we will create a discardable directory calls rm.dir into which we shall add two directories: dir1 and dir2. ~$ mkdir rm.dir && cd rm.dir ~$ mkdir dir1 dir2 Now paste some rubbish into a dir1/file1.txt (find your least favourite website and copy and paste everything):~$ cat > …