Info Catalog coreutils: sum invocation coreutils: Summarizing files coreutils: b2sum invocation

coreutils: cksum invocation

 
 6.3 ‘cksum’: Print CRC checksum and byte counts
 ===============================================
 
 ‘cksum’ computes a cyclic redundancy check (CRC) checksum for each given
 FILE, or standard input if none are given or for a FILE of ‘-’.
 Synopsis:
 
      cksum [OPTION]... [FILE]...
 
    ‘cksum’ prints the CRC checksum for each file along with the number
 of bytes in the file, and the file name unless no arguments were given.
 
    ‘cksum’ is typically used to ensure that files transferred by
 unreliable means (e.g., netnews) have not been corrupted, by comparing
 the ‘cksum’ output for the received files with the ‘cksum’ output for
 the original files (typically given in the distribution).
 
    The CRC algorithm is specified by the POSIX standard.  It is not
 compatible with the BSD or System V ‘sum’ algorithms (see the previous
 section); it is more robust.
 
    The only options are ‘--help’ and ‘--version’.  ⇒Common
 options.
 
    An exit status of zero indicates success, and a nonzero value
 indicates failure.
 

Info Catalog coreutils: sum invocation coreutils: Summarizing files coreutils: b2sum invocation