jbn35564@uxa.cso.uiuc.edu (J.B. Nicholson) (04/10/91)
In KSH I want to make ${PS1} take on a value where it executes a function called
PS1, but not take on the output from the function itself. Here's what I mean:
function PS1 {
shrunkhome=${PWD%${HOME}/}
case ${shrunkhome} in
${HOME}) shrunkhome=\~/ ;;
esac
HOSTNAME=$(hostname)
print -n '<'${USER}'@'${HOSTNAME%%.*}':'${shrunkhome}'> ' ;;
}
...then I want to define...
export PS1=$(PS1)
but that only works the first time I use ${PS1}. I'd like to define it as:
export PS1=[just run the function called](PS1)
but I don't know how to make that definition. I've tried having an alias
for cd:
alias -x cd='_cd'
and a function (defined before that alias was set) called _cd that basically
assigns ${PS1} to the right value somewhat similar to above, except passing
arguments to the REAL cd program (to maintain compatibility) but every time
I access cd, won't this function _cd run? Also, all my error messages come
from _cd and not cd. That's rather annoying to me. Anyways, I figure keeping
this whole thing inside ${PS1} would not void any warranties, cause any
mayhem or incompatibilities or whatever. :-)
So, basically what I'm asking is: How do I do this?
Thanks in advance,
Jeff
--
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| "If you hear an onion ring - answer it." J.B. Nicholson |
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| jeffo@uiuc.edu (Internet) These opinions are mine, that's all.|
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