Does anyone explain md5sum and chksum in Unix file system

Question

So many times, we make foreground process to background process in linux system. How does it handle internally ?

Answer 1

md5sum value of any files or binary or library use for file integrity and verifies 128-bit MD5 hashes. It is digital finger print of the file.
e.g There is tar ball package created for customer, we can get the md5sum of that package:

md5sum <package name>
43c191bf6d6c3f263a8cd0efd4a058ab  <package name>

The program md5sum is designed to verify data integrity using the MD5

The program md5sum is designed to verify data integrity using the MD5

The standard cksum command, uses a CRC algorithm based on the ethernet standard frame check and is therefore interoperable between implementations

$ cksum test.txt
********** 75 test.txt