Reading contents of a specific block of a file
Hello greetings of the day!!!
Sir, I want to read the contents of a block(cluster) of a file.Suppose my file name is test.txt (size=9200 bytes) and is allocated to 3 blocks(say 23,24,25). Now i want to read the contents of block 25 and want to know what is wriiten in the unused sectors of last block(25)?Suppose i want to hide data in the unused sectors(slack space) of the last block then how i can do this?
Please give me such program or command that can do this on linux.
thank you in advance.