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Power-Programmierung
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magazine
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cmplangm
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1989_6
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awk
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number.awk
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Text File
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1988-03-06
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212b
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9 lines
BEGIN {
sign = "[+-]?"
decimal = "[0-9]+[.]?[0-9]*"
fraction = "[.][0-9]+"
exponent = "([eE]" sign "[0-9]+)?"
number = "^" sign "(" decimal "|" fraction ")" exponent "$"
}
$0 ~ number