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validation: set field size to 6 digits

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# 1  
Old 08-30-2006
validation: set field size to 6 digits
I'm curious, how would I set validation on a field size to make sure it only ever accepts a 6 digit number?

I currently have validation for it to be an integer in place but can't find anywhere that says how to make it only a length of 6 digits.

any tips on the function I should be focussing on?
# 2  
Old 08-30-2006
Try:
Code:
INPUT=$1
if [ ${#INPUT} -ne 6 ]
then
   echo "ERROR: NUMBERS MUST BE 6"
   exit 2
fi
if [ $(echo ${INPUT}|grep -c "[0-9]\{${#INPUT}\}") -eq 0 ]
then
   echo "ERROR: ONLY NUMBERS PLEASE :-)."
   exit 2
fi

In adition u can use
Code:
typeset -Z6 INPUT

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