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md5sum file > file.md5
md5sum file >>file.md5
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md5sum *.iso > iso.md5
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md5sum -c file.md5
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You can using the follow method to verify whether the sended file was distoried:
1.Local:#md5sum fileName
          Return:Numbercode1 fileName
2.Destination:#md5sum fileName
          Return£ºNumbercode2 fileName
3.Check:if Numbercode1=Numbercode2 ,then Destination fileName is the same as local's.


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