Hash
1. When referring to Perl, a hash is an associative array. Hashes have a % prefix and contain a listing of keys and values. Below is an example of a basic Perl hash.
my %hope = ("hardware", "Monitor", "software", "office");
print "Hardware hash = $hope{hardware}\n";
In the above example, the program set the hash table and then print the hardware hash, which is equal to the next element in the hash. Therefore, the program would print "Hardware hash = Monitor".
2. A hash is also another word for Octothrope ( # ).
3. Linux command, see the hash command page for additional information about this command.
4. FTP command that turns on/off the displaying of a hash mark ( # ) for each 1024 bytes of data received when getting a file. See the how to use ftp help page for information about hash and other FTP commands.
Also see: Hashing, Programming definitions