Detach several packages at once

Question

Inspired by this answer I am looking for a way to detach several packages at once.

When I load say Hmisc,

# install.packages(\"Hmisc\", dependencies          


        

Answer 1

To answer my own question to Hong's answer:

detlist<-c('Hmisc','survival','splines')

lapply(detlist, function(k) detach( paste('package:', k, sep='', collapse=''), unload=TRUE, char=TRUE))

Works just fine. The sorting function at the top of base::detach is a bit wonky, but using character.only=TRUE got me thru just fine.