Suppose I have a two-dimensional hash: ManagerInCharge{month}{week} defined below. For any given month, I'd like to make a list variable containing all the weeks included in that month. For example, for 200610 (Oct 2006), I'd like to assign to some variable the list (1,2,3,4), while for 200701, I'd like to extract (1,2,3). Please help! (I did not find this in Learning Perl, though it may be there somewhere.)

%ManagerInCharge = (

200610 => {

1 => "jane",

2 => "john",

3 => "joe",

4 => "frank",

},

200701 => {

1 => "gunder",

2 => "abel",

3 => "frank",

},

);

In reply to Extracting a list of keys from a multi-dimensional hash. by PerlKitten

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