#! ./tesh

# This example uses the cd command

$ rm -rf testdir_temp
$ mkdir testdir_temp
$ cd testdir_temp

# Check that there is nothing in the current dir (which must be testdir_temp)
$ ls

# The next command checks that there is a testdir_temp in the upper directory, 
# ie that mkdir and cd both worked.
$ test -e ../testdir_temp

$ cd ..
$ rmdir testdir_temp