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Array reference problem

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# 15  
Old 07-19-2010
@bakunin


its working...thank you soo much....do u mind just explaining me what is happening with the command \${#$hostname[*]})
# 16  
Old 07-20-2010
Quote:
Originally Posted by niteesh_!7
what is happening with the command \${#$hostname[*]})
This tells you the number of elements in an array. I use it to end the loop at the appropriate array index. For example:

Code:
typeset array[1]="x"
typeset array[2]="y"
typeset array[3]="z"

echo ${#array[*]}     # gives "3" as "array[]" contains 3 elements

typeset array[4]="u"

echo ${#array[*]}     # gives now "4"

# like in the sample code above we introduce a further level of indirection:

typeset arr_name="array"

eval echo \${#$arr_name[*]}   # will also yield "4"

You might see "${#array[@]}" instead of "${#array[*]}". Both these expressions will evaluate to the same value - the number of elements stored in the array.

I hope this helps.

bakunin
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