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ex13.py
from sys import argv
script, first, second, third = argv
print("argv is:",argv)
print("")
print("The script name is:", script)
print("The 1st arg is:", first)
print("The 2nd arg is:", second)
print("The 3rd arg is:", third)
print("")
print("The script name is:", argv[0])
print("The 1st arg is:", argv[1])
print("The 2nd arg is:", argv[2])
print("The 3rd arg is: " + argv[3])
print("")
print(first, second, third)
print(first+ second+ third)
