saaf@joker.optics.rochester.edu (Lennart Saaf) (09/21/89)
I am currently a csh user and have twice tried unsuccessfully to switch to ksh. In my view the big bonuses of switching are the command editing and the advertised speed improvement. The system here is an HP 9000/835. First the speed issue. The simple-minded speed test consists of holding down the return key and seeing if the shell can keep up with the repeats. The Bourne shell is sufficiently fast to produce a prompt an every line. The c shell is not fast enough. It produces a prompt on about every sixth line. When the return key is released it spews out the backlogged prompts at a rate of about 3 per second. The performance of the Korn shell depends on whether the environmental variables FCEDIT and EDITOR (or VISUAL) are defined. Setting of these variables seems to be the way to enable the in-line command editing feature. If these variables are not set, ksh appears to perform as fast as sh. If they are set (I tried both vi and emacs) the speed goes like csh. So it seems I can't get one of the nice features without sacrificing the other. I hope that I am missing something that will let me have the best of both worlds, so I humbly ask the net for assistance. The second question concerns the in-line command editing feature. I would like to use my arrow keys in emacs instead of ctrl-p, etc. Is this possible? I would assume that it might use a special startup file with key bindings? I will post a summary of the e-mail I receive. Thanks in advance, -- ------------------------------------------------------------------------ | Len Saaf, The Institute of Optics, Univ. of Rochester, Rochester, NY | | Internet: saaf@joker.optics.rochester.edu Bitnet: SAAF@UOROPT | ------------------------------------------------------------------------