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How to unset a readonly variable?

 
tikual
Advisor

‎09-17-2003 12:16 AM

‎09-17-2003 12:16 AM

How to unset a readonly variable?

Hi all,

After I typed "typeset -r var1", how can I unset var1?

Thanks.
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Mark Grant
Honored Contributor

‎09-17-2003 12:19 AM

‎09-17-2003 12:19 AM

Re: How to unset a readonly variable?

you can type "unset var1"

Nearly solved it yourself there :)
Never preceed any demonstration with anything more predictive than "watch this"
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Mark Grant
Honored Contributor

‎09-17-2003 12:22 AM

‎09-17-2003 12:22 AM

Re: How to unset a readonly variable?

Actually, I appear to be completely wrong!

unset doesn't work

Apologies
Never preceed any demonstration with anything more predictive than "watch this"
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Mark Grant
Honored Contributor

‎09-17-2003 12:46 AM

‎09-17-2003 12:46 AM

Re: How to unset a readonly variable?

Ok, having looked into this a bit in an effort to redeem myself :)

There is no way to change the attribute once it is set. However, some versions of the Korn shell do allow you to unset it and then re-set it but current versions of Korn shell and Posix shell don't allow it.

Sorry!
Never preceed any demonstration with anything more predictive than "watch this"
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