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- From: ghod@drycas.club.cc.cmu.edu
- Newsgroups: comp.os.coherent
- Subject: Re: Coherent 4.0 ksh
- Message-ID: <1993Jan25.032656.3004@drycas.club.cc.cmu.edu>
- Date: 25 Jan 93 03:26:56 -0500
- References: <1993Jan21.164331.25130@ims.com>
- Organization: Carnegie Mellon Computer Club
- Lines: 22
-
- In article <1993Jan21.164331.25130@ims.com>, ericm@ims.com (Eric Martinson) writes:
- > The ksh which is distributed with Coherent is acceptable but not
- > complete (at least the way I know ksh). I seriously miss the
- > the following features:
- >
- > o vi editting mode
- > o ^Z, fg, bg for job control
- The reason you don't have job control features in any of Coherent's shells is
- because Coherent doesn't yet support the signals you need to make job control
- work. I haven't seen it in a while (my Coherent experience comes from a
- friend's machine at work), but I think /usr/include/sys/signal.h
- only has 16 signals defined it in under 4.0.1, whereas most versions of
- Unix have at least 32. (And, if memory serves, Coherent 3.2.0 only had 9!)
- You need SIGTSTP (sent when ^Z is typed) and SIGCONT for job control,
- and Coh just doesn't have them yet. Seems to me that enhanced signal
- capabilities would be needed for X11 & TCP/IP support, so I wouldn't be
- surprised if MWC has 'em in the works as we speak. ;)
-
- As for the other ksh features, well, heck, don't look at me: I'm a tcsh
- fan myself. ;)
-
- --Bill
-