Created
June 1, 2012 12:36
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filter out ipv4 ips from stdin/file(s)
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| #!/bin/sh -e | |
| cat $@ | tr -cs '0-9\.' '\n' | awk -F'.' 'NF==4 && $1 > 0 && $1<=255 && $2<=255 && $3<=255 && $4<=255 && !/\.\./' |
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