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$ time perl -MGetopt::Std -e 1
0.07user 0.00system 0:00.07elapsed 97%CPU
...

$ time perl -MGetopt::Declare -e 1
0.59user 0.08system 0:00.67elapsed 99%CPU

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For example, given the parameter specifications:

...
            -abc newfile +dele20
            -abcnewfile+dele20
            -abcnewfile +e 20del