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isamchk


       without options all tables on the command will be  checked
       for errors


USAGE

       isamchk [OPTIONS] tables[.ISM]


SYNOPSIS

       isamchk    [-a|--analyze]   [-#|--debug=...]    [--charac­
       ter-sets-dir=...]         [-C|--default-character-set=...]
       [-d|--description]     [-e|--extend-check]    [-f|--force]
       [-?|--help]     [-i|--information]      [-k|--keys-used=#]
       [-l|--no-symlinks]       [-q|--quick]       [-r|--recover]
       [-o|--safe-recover]     [-O|--set-variable     var=option]
       [-s|--silent]    [-S|--sort-index]   [-R|--sort-records=#]
       [-u|--unpack] [-v|--verbose] [-V|--version] [-w|--wait]


DESCRIPTION

       -a|--analyze
              Analyze distribution of keys. Will make some  joins
              in MySQL faster.

       -#|--debug=...
              Output debug log. Often this is 'd:t:o ,filename`

       --character-sets-dir=...
              Directory where character sets are

       -C|--default-character-set=...
              Set the default character set

       -d|--description
              Prints some information about table.

       -e|--extend-check
              Check the table VERY thoroughly.  One need use this
              only in extreme cases as  isamchk  should  normally
              find all errors even without this switch

       -f|--force
              Overwrite old temporary files.  If one uses -f when
              checking tables (running isamchk without -r), isam­
              chk will automatically restart with -r on any wrong
              table.

       -?|--help
              Display help and exit.

       -i|--information
              Print statistics information about the table

       -k|--keys-used=#
              Used with '-r'. Tell ISAM to update only the  first
              aren't unique.

       -o|--safe-recover
              Uses old recovery method; slower than '-r' but  can
              handle a couple of cases that '-r' cannot handle.

       -O| --set-variable var=option
              Change the value of a variable.

       -s|--silent
              Only  print  errors.   One  can  use two -s to make
              isamchk very silent

       -S|--sort-index
              Sort index blocks.  This speeds up  'read-next'  in
              applications

       -R|--sort-records=#
              Sort  records  according  to  an index.  This makes
              your data much more  localized  and  may  speed  up
              things  (It may be VERY slow to do a sort the first
              time!)

       -u|--unpack
              Unpack file packed with pack_isam.

       -v|--verbose
              Print more information. This can be  used  with  -d
              and -e. Use many -v for more verbosity!

       -V|--version
              Print version and exit.

       -w|--wait
              Wait if table is locked.


SEE ALSO

       isamchk (1), isamlog (1), mysqlaccess (1), mysqladmin (1),
       mysqlbug (1), mysqld (1), mysqldump  (1),  mysqlshow  (1),
       msql2mysql  (1), perror (1), replace (1), mysqld_safe (1),
       which1 (1), zap (1),


AUTHOR

       Ver 1.0, distribution 3.23.29a  Michael  (Monty)  Widenius
       (monty@tcx.se),  TCX  Datakonsult  AB (http://www.tcx.se).
       This software comes with no warranty.  Manual page  by  L.
       (Kill-9)  Pedersen  (kill-9@kill-9.dk),  Mercurmedia  Data
       Model Architect / system  developer  (http://www.mercurme­
       dia.com)

  
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