# test against all installed perls, without doing anything else

brewbuild

# -r removes all installed Perls, less the one you're 'switch'ed to
# -n installs N number of perls, randomly, and tests against them all

brewuild -r -n 4

# same thing, but after removing all Perls, install 
# specific versions to test against

brewbuild -r -i 5.22.1 -i 5.24.0 -i 5.10.1