1 ./dirstack.tests: pushd: no other directory
2 ./dirstack.tests: popd: directory stack empty
3 ./dirstack.tests: pushd: -m: bad argument
4 pushd: usage: pushd [dir | +N | -N] [-n]
5 ./dirstack.tests: popd: -m: bad argument
6 popd: usage: popd [+N | -N] [-n]
7 ./dirstack.tests: dirs: -m: bad argument
8 dirs: usage: dirs [-clpv] [+N] [-N]
30 ./dirstack.tests: dirs: 9: bad directory stack index
31 ./dirstack.tests: dirs: 9: bad directory stack index
32 ./dirstack.tests: pushd: +9: bad directory stack index
33 ./dirstack.tests: pushd: -9: bad directory stack index
34 ./dirstack.tests: popd: +9: bad directory stack index
35 ./dirstack.tests: popd: -9: bad directory stack index