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    Command:

    hashstash

    
         $retval hashGet    <Key> <HashName> [SubHashName [...]]
         $retval hashKeys   <HashName> [SubHashName [...]]
         hashRemove         <Key> <HashName> [SubHashName [...]]
         hashDelete         <HashName> [SubHashName [...]]
    
    
    

    DESCRIPTION

       General
         hashstash  is  a  collection of functions that implement basic hash data-
         structure in bash scripting language.
    
         The function list:
               hashSet          Adds a value to the hash
               hashGet          Returns a value from the hash
               hashKeys         Returns a list of keys of the hash
               hashRemove       Removes a key from the hash
               hashDelete       Deletes a hash
    
         Detailed interface description follows.
    
    
    

    FUNCTIONS DESCRIPTIONS

       hashSet <Value> <Key> <Hashname> [SubHashName [...]]
         Adds a value to the hash.
    
         Parameters:
    
           <Value>
             The value to set in HashName[Key].
    
           <Key>
             The key for the value Value.
    
           <HashName> [SubHashName [...]]
             A string that contains the name of the hash.  If the hash is a sub
             hash of another hash, the "father hash" name MUST BE WRITTEN FIRST,
             followed by the sub-hash name.
    
         Value will be the value of the key Key in the hash HashName.  For example
         if you have (or want to define) hash C, which is subhash of hash B, which
         is subhash of hash A, and C has a key named ckey1 with value cval1, then
         you should use:
               hashSet cval1 ckey1 A B C
    
       $retval hashGet <Key> <HashName> [SubHashName [...]]
         Returns the value of Key in HashName to the $retval variable.
    
         Parameters:
    
           <Key>
             The key that hold the value we wish to get.
    
           <HashName> [SubHashName [...]]
             A string that contains the name of the hash.  If the hash is a sub
             hash of another hash, the "father hash" name MUST BE WRITTEN FIRST,
             followed by the sub-hash name.
    
         Return Value:
    
           The value of the key Key in the hash HashName.  The value  is  returned
           in the variable $retval.
    
       hashRemove <Key> <HashName> [SubHashName [...]]
         Removes the key Key from the hash HashName.
    
           <Key>
             The key we wish to remove from HashName.
    
           <HashName> [SubHashName [...]]
             A string that contains the name of the hash.  If the hash is a sub
             hash of another hash, the "father hash" name MUST BE WRITTEN FIRST,
             followed by the sub-hash name.
    
         This function should also be used to remove a sub-hash from its "father
         hash".  In that case, the key will be the name of the sub-hash.
    
       hashDelete <HashName> [SubHashName [...]]
         Deletes the hash HashName [SubHashName [...]].
    
         Parameters:
    
           <HashName> [SubHashName [...]]
             A string that contains the name of the hash.  If the hash is a sub
             hash of another hash, the "father hash" name MUST BE WRITTEN FIRST,
             followed by the sub-hash name.
    
         If this function is used on a sub-hash, a key with the name of the sub-
         hash will remain in its "father hash" and will hold a NULL value.
    
    
    

    BUGS

         A  hash  name  can only contain characters that are valid as part of bash
         variable names (i.e. a-zA-Z0-9_).  The same applies for hash keys.
    
         As for now, there is no way of knowing if a key represents a value  or  a
         sub-hash.   If  a sub-hash will be used as a key, the returned value will
         be its keys list.
    
    
    

    EXAMPLES

         Define hash table hashA with key Akey1 with value Aval1 use:
               % hashSet Aval1 Akey1 Ahash
         Now:
               % hashGet Akey1 Ahash
               % echo $retval
               Aval1
               % hashKeys Ahash
               % echo $retval
    
    
    

    SEE ALSO

         ldbash(1), libbash(1)
    
    
    

    Linux Epoch Linux

    
    
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