text_combined: nicholas clark suqhccl4org thu oct 25 2007 044138pm 0500 craig berry wrote following 32194 gets passing vms dont fully understand testing double quotes appear something convenient use inside single quotes yes convenient wed oct 24 2007 114953pm 0500 john e malmberg wrote native vms dcl shell single quotes c used symbol substitution double quotes must used quoting strings single quotes may embedded string enclosed double quotes reverse possible write regexp appropriate routine spawns new child perl validate command line simple portability issues like refuse run unless pass extra non_portable flag nicholas clark thu 07 aug 2008 050214 0100 extbtoptree_misct failure vms blead32181