How do I check the MD5 checksum of a file in Ubuntu?

A year later, in 1991, Rivest developed a more technologically sophisticated MD5 algorithm. It adds the concept of "security-straps" (safety-belts) on the basis of MD4. Although MD5 is slightly slower than MD4, it is safer. This algorithm is clearly composed of four and MD4 designs with a few different steps. In the MD5 algorithm, the size of the information-digest and the necessary conditions for filling are identical to the MD4. Den Boer and Bosselaers have discovered a fake conflict (pseudo-collisions) in the MD5 algorithm, but there are no other encrypted results found.

MD5 uses hash functions, in http://www.aliyun.com/zixun/aggregation/11991.html "> The most widely used irreversible encryption algorithms in computer networks are the MD5 algorithm developed by RSA and the safe hashing algorithm proposed by the National Institute of Technology Standards.

So how do you check the MD5 checksum of a file in Ubuntu?

Suppose File.iso and file.iso.md5 are in the same directory, executing

Md5sum-c FILE.ISO.MD5