Korn Shell Question

[Daniel R. Levy]

In article <22300001 at ntvax>, mike at ntvax.UUCP writes:
>
>I have a Korn Shell question that perhaps someone can answer. I like to
>have as my system prompt my current path. When I use csh, I set up my
>.cshrc file with these entries:
>  
>set prompt = "! `pwd`}"  -- this establishes my prompt as my command number
>			    and current path when i first initiate the shell
>
>alias cd 'chdir \!:1; set prompt=\!\`pwd`}\'
>			    this sets up my cd command to not only change
>			    my working directory but to change the prompt.
>
>I would like to have something similar to this in ksh but I'm not sure how
>to change PSx on the fly. Has someone done something similar to this??
>
>Any help would be greatly appreciated.
>
>
>      
>      |######################################|
>      |#         J. Michael Flanery         #|
>      |#        Computer Science Dept.      #|
>      |#     North Texas State University   #|
>      |#   UUCP: {ihnp4}!infoswx!ntvax!mike #|
>      |######################################|

In ksh, define (say) chdir as a shell function, then alias cd to it.
ksh aliases aren't recursive, so this works:

case $0 in
	*ksh)	PS1=!$PWD}
		chdir()
		{
		cd $1	# this shell function will return here if the cd fails
		PS1=!$PWD\}
		}
		alias cd=chdir
esac
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