I was very curious to use this psh(perl shell), I was using bash and I love bash, but because of my recent addiction to perl, I wanted to make one of the perl shells as my default shell, I choose this psh, but I became handicapped because i tried the option 'set -o vi', which enables the vi mode in command line in bash.(I really love vim because it was my default editor for years), Does psh has this feature?, if so please point me out, otherwise tell me that other ways of mimicking vi mode in psh, because I really wanted to use one of the perl shells.