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 delete all currently attached packages:

lapply(names(sessionInfo()$otherPkgs), function(pkgs) detach(paste0('package:',pkgs),character.only = T,unload = T,force=T))