The utility should be able to use command line options point out:
- directories to scan (there may be several)
- directories to exclude from scanning (there may be several)
- scan level (one for all directories, 0 - only specified directory without attachments)
- minimum file size, all files are checked by default more than 1 byte.
- masks of file names allowed for comparison (case-independent)
- the size of the block used to read files, in the task this the size is referred to as S
- one of the available hashing algorithms (crc32, md5 - determine the specific options yourself), in the task this function is referred to as H
The result of the utility should be a list of full file paths with identical content, output to standard output. On one one file per line. Identical files must be in a row, in one group. The different groups are separated by an empty line.
A mandatory feature of the utility is careful handling of disk input the conclusion. Each file can be represented as a list of blocks zeros.
scdirectories for scan ("path" ... "path")unscdirectories for unscan ("path" ... "path")dpthdpth in tree of directories for scan (0..)msfminimal size of file (1..)maskmask of file for scan (regexp)sbsize of block in file (bytes)hashalgorithm of hash (md5, crc32)
bayan --sc="path" "path" --unsc="path" "path" --dpth=2 --msf=5 --mask=".*\.(cpp|h)" --sb=20 --hash=md5