xxxxxxxxxx
>> python script.py var1 var2
import sys
# contains the script name
sys.argv[0]
# contains the first variable (var1)
sys.argv[1]
# contains the second variable (var2)
sys.argv[2]
xxxxxxxxxx
#shell command
>> python python_script.py var1 var2
# To access the variables inside the script
import sys
print sys.argv[0] # prints python_script.py
print sys.argv[1] # prints var1
print sys.argv[2] # prints var2