To check MD5 checksum of a file in linux go to folder containing file and md5 checksum which normally ends “.md5″.

First display content of existing file:

# cat yourfile.md5
bc4708c34c971595649207fe1ea012ba  yourfile 

Next generate new checksum using md5sum command:

# md5sum yourfile
bc4708c34c971595649207fe1ea012ba yourfile

Compare both outputs, of they are not identical file has been modified since initial hash has been generated.

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