12345678910111213 Line 1After sub1 definitionIn sub1Sub1 has arguments:_ARGS[0]=A1a0='A1'Before: a0='Joe'In sub1Sub1 has arguments:_ARGS[0]=Bilbo Bagginsa0='Bilbo Baggins'After: a0='Joe'EOF
Line 1
After sub1 definition
In sub1
Sub1 has arguments:
_ARGS[0]=A1
a0='A1'
Before: a0='Joe'
_ARGS[0]=Bilbo Baggins
a0='Bilbo Baggins'
After: a0='Joe'
EOF