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12-19-2006
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Numeric Validation
Hi, How to check whether an input to a shell script contain only numeric values. Is there any way to check against the following characters. & ( ) | \ " ' < > ` I've used the following way. Code:
echo $1 | grep "[^0-9]\{2\}$"
if [ $? -eq 0 ]
then
echo "OK"
else
echo "Error"
fi
But, in this case there are two issues. 1) If the input contains numeric values the input value will be displayed which i don't want. 2) If special characters mentioned above are included, the script fails. I've given up. I would really appreciate if anyone can help me out. Thanks, Sumesh |
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