topic Re: Shell Var? in Operating System - Linux

Shell Var?

Oviwan — Tue, 28 Mar 2006 05:05:07 GMT

Hi

What does this exactly mean:
[
\
....

is somewhere an overview or something else?

Regards

Re: Shell Var?

RAC_1 — Tue, 28 Mar 2006 05:07:41 GMT

It is another way of putting if not construct.

I prefer if [xxxx];then
hjhdhd
fi

Re: Shell Var?

Peter Godron — Tue, 28 Mar 2006 05:23:38 GMT

Oviwan,
91 is the ascci value for [
93 is the ascii value for ]

man ascii ( look for 5b and 5d (hex for 91,93)

Re: Shell Var?

Muthukumar_5 — Tue, 28 Mar 2006 05:57:27 GMT

&# used to handle an alphabet in ascii mode in scripting. It is an expert level scripting.

# cat /usr/share/lib/pub/ascii

will give letter and ascii value to it.

--
Muthu

Re: Shell Var?

Oviwan — Tue, 28 Mar 2006 06:13:47 GMT

Thanks!

But what is the reason for using the ascii method? is this environment dependently?

Regards

Re: Shell Var?

Muthukumar_5 — Tue, 28 Mar 2006 06:19:05 GMT

Not like that. You can use ascii mode as well in shell.

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=143878

See in that, netconf file is configured with [ and \ instead of [] for shell variables.

--
Muthu

Re: Shell Var?

Muthukumar_5 — Tue, 28 Mar 2006 06:21:37 GMT

See this:

Give [ in forums search in the top. It is changed to [ alphabet. Like the shell will interpret.

--
Muthu

Re: Shell Var?

Peter Godron — Tue, 28 Mar 2006 06:21:56 GMT

Oviwan,
I have not come across a situation were I HAD to use the ascii equivalence codes.
I assume it is down to personal preference.

Re: Shell Var?

Oviwan — Tue, 28 Mar 2006 06:43:45 GMT

Thanks,

at first glance it's really confusing. Isn't there really an other reason?

Regards

Re: Shell Var?

Arunvijai_4 — Tue, 28 Mar 2006 08:43:27 GMT

Hi,

Check this thread out

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=22050

-Arun

Re: Shell Var?

James R. Ferguson — Tue, 28 Mar 2006 09:15:29 GMT

Hi Oviwan:

This is an old bug introducted into the Forum database during one of its upgrades. The notation should render as open and close square brackets, respectively.

See Stuart Browne's post at Sep 22, 2003 06:25:13 GMT and Dan Gazzaniga's comments at Sep 26, 2003 17:34:02 GMT in this post:

http://forums1.itrc.hp.com/service/forums/parseCurl.do?CURL=/cm/QuestionAnswer/1,,0xb27041de970ce3438b2622f343b29fbc,00.html&admit=716493758+1066396007828+28353475

Regards!

...JRF...

Re: Shell Var?

Oviwan — Tue, 28 Mar 2006 09:32:23 GMT

hehe, thanks, now it's all clear ;)