From perldoc system : 

system PROGRAM LIST
Does exactly the same thing as exec LIST , except that a fork is done 
+first,

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This fork is why "the system call never waits for the conversion to happen"

Perldoc also provides a way to wait for return : 

system(@args) == 0
or die "system @args failed: $?"

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In reply to Re: Sytem Call Not Waiting by ZlR
in thread Sytem Call Not Waiting by jai_dgl

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