NAME

       opmhash - Hasher for summary keywords in Eclipse files

SYNOPSIS

       opmhash [OPTIONS] ECL_DECK_FILENAME [ECL_DECK_FILENAME_2] [ECL_DECK_FILENAME_3] [...]

DESCRIPTION

       The  purpose of the opmhash program is to load a deck and create a summary, by diffing two such summaries
       it is simple to determine if two decks are similar.  For each keyword a hash of the normalized content is
       calculated. The output of the program will look like this:

       RUNSPEC
              : 13167205945009276792

       TITLE  : 16047371705964514902

       DIMENS : 1264233216877515756

       NONNC  : 10052807539267647959

       OIL    : 6013609912232720008

       WATER  : 14106203893673265964

       Total  : 7362809723723482303

       Where the 'random' integer following each keyword is the hash of the content of that keyword. The hashing
       is insensitive to changes in white-space and comments and file location. At the bottom comes a total hash
       of the complete content. The hash of each keyword is insensitive to shuffling of keywords, but the  total
       hash depends on the keyword order.

OPTIONS

       -l : Add filename and linenumber information to each keyword.

       -s : Short form - only print the hash of the complete deck.

       -S : Silent form - will not print any deck output.

       It  is  possible  to  add  multiple  deck  arguments, they are then scanned repeatedly, and the decks are
       compared. In the case of multiple deck arguments the exit status of the program will be zero if  all  are
       equal and nonzero in case of differences.

opmhash                                            April 2025                                         OPMHASH(1)