Jak v shellu zjistit zda promenna obsahuje pouze platne znaky

[Petr Novotny]

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On 7 Sep 2000, at 12:00, Petr Simek wrote:

> nejak mne rychle nenapada jak zaridit subject . Chci zkontrolovat tel
> cislo zda obsahuje jen cisla a pripadne - a nic jineho. Nevite jak na
> to ?

V prvnim priblizeni:
TEST=11100054a4352
TEST2=`echo $TEST|tr -dc [-0123456789]`
[ "$TEST" = "$TEST2" ] && echo OK || echo KO


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Petr Novotny, ANTEK CS
Petr.Novotny na antek.cz
http://www.antek.cz
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