complete -c ksh -a "+{a,b,c,e,f,h,i,k,n,o,p,r,s,t,u,v,x,B,C,D,P}" complete -c ksh -a "-{a,b,c,e,f,h,i,k,n,o,p,r,s,t,u,v,x,B,C,D,P}" complete -c ksh -s R