numeric string and length

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12-08-2008

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numeric string and length

given a string passed to a program that supposed to be numeric and of a certain length say 8 digits - so say for e.g. need to verify this 01234567
How would I parse this string to validat it meet requirements

I tried to use * | sed /\([1-9]\{8})/

Thanks in advance

dragrid

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12-08-2008

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If your shell support parameter expansion

Code:

NR=01234567
[ ${#NR} -eq 8 -o "${NR//[0-9]/}"!="" ] && echo NOK  || echo OK

danmero

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