Two easyish csh env questions

Posted on 2000-02-29
Medium Priority
Last Modified: 2013-12-27
What's the syntax to set up an alias that runs emacs in the bavkground? So I can type something like   "e file1 file2" and have it run in the background (this is with X of course) while opening those two files?

At one point I hardcoded setenv TERM vt100 in my .cshrc, and now when I run an xterm, pressing backspace brins up ^H.  How can I get it so both delete and backspace work?

(Oh, and while we're at it: does csh generally have options for tab-completion and arrow-key-history recall, or do I need to upgrade to tcsh for that? This is on solaris)
Question by:kisrael
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Expert Comment

ID: 2570490
i don't know anything about csh but you should get bash2.0 from http://metalab.unc.edu/pub/solaris/sparc/ .they have some neat packages there. bash will complete the tab-completion and will keep the history.

Accepted Solution

rfi earned 150 total points
ID: 2571959
(1) With csh aliases, this can't be done. You have to write a script.

(2) stty erase ^h

(3) This is not available in csh

In general, it makes no sense to use csh at all. tcsh is ways better, and I personally prefer using a POSIX compatible shell like bash or zsh - but that's a matter of taste.

Author Comment

ID: 2572882
I upgraded to tcsh on this solaris box.  (Ahh, it feels good after a week of wrestling with defeatured csh) I know a little bit about why people like bash and zsh, but it's one of those cases where I'm likelyto stick with what I grew up with til I see a compelling reason to change. (Do bash and zsh have tab completion and arrow key recall?)

Anyway, can you tell me what the tcsh "run in background" alias is? I used to know it... and then I can close up this question.
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Expert Comment

ID: 2573766
alias e 'emacs \!* &'

Author Comment

ID: 2573789
Thanks ozo.

I should go look to some shell advocacy page...

Expert Comment

ID: 2575491
>>I know a little bit about why people like bash and zsh, but it's one of those cases where I'm likelyto stick with what I grew up with til I see a compelling reason to change.<<

As long as it is taken as an interactive shell, it really is a matter of taste, and tcsh is certainly an excellent tool. Thinks look different when scripting is concerned. There is (fortunately) a standard for scripting defined (it is in POSIX.2), and tcsh does not relate to this standard, while bash, zsh and ksh-93 do. So when you are starting to do scripting, you will have to learn the POSIX syntax anyway. Note that this applies not only to scripts you have to modify, but also to those you write yourself - you should better not write scripts in csh or tcsh [although tcsh corrects a few flaws of csh with respect to scripting]. See  http://ing.iac.es/~cfg/notes/public/csh.html for details on this topic.

>> Do bash and zsh have tab completion and arrow key recall? <<



Author Comment

ID: 2576662
Ah, thanks.  
I'll probably stick with what I know, and use Perl for any non-trivial script.  (My scripting needs are generally pretty light, and can put up with Perl's overhead in exchange for its familiarity and ease-of-use.)

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