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From: "Denis G. Samsonenko" <earthsea@ngs.ru>
To: community@altlinux.ru
Subject: Re: [Comm] bash question
Date: Wed, 18 May 2005 00:45:53 -0500
Message-ID: <428AD691.7080102@ngs.ru> (raw)
In-Reply-To: <200505172244.07591.mak@cea.ru>

Hi!

Michael A. Kangin пишет:
>> echo $VAR | grep -q '^[1-9][0-9]\{0,1\}$' || VAR="1"
>> Теперь, если переменная равна числу в промежутке от 1 до 99, то ничего
>> не происходит, если же нет, то переменной присваивается значение 1.
> 
> А что, если сравниваются числа, так некошерно будет?
> 
> [ $VAR -gt 1 -a $VAR -lt 99 ] && echo "переменная равна числу в промежутке от 
> 1 до 99 (невключительно)"

Так не пойдёт в виду следующего:

[denis@cys denis]$ VAR="a"; [ $VAR -gt 1 -a $VAR -lt 99 ] && echo "yes"
bash: [: a: integer expression expected


-- 
Всего доброго,

Денис.

---------------
earthsea@ngs.ru



  reply	other threads:[~2005-05-18  5:45 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-17  4:03 Denis G. Samsonenko
2005-05-17  3:16 ` Журкин Владимир Александрович
2005-05-17  4:31   ` Denis G. Samsonenko
2005-05-17  5:41 ` Yura Kalinichenko
2005-05-17  8:40   ` Denis G. Samsonenko
2005-05-17 18:44     ` Michael A. Kangin
2005-05-18  5:45       ` Denis G. Samsonenko [this message]
2005-05-18  8:17         ` [Comm] " Vitaly Ostanin
2005-05-18  9:51           ` Denis G. Samsonenko

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