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Write a script named sum.sh to print given numbers sum of all digits. The shell accepts one integer argument as a parameter. Your program must
Write a script named sum.sh to print given numbers sum of all digits. The shell accepts one integer argument as a parameter. Your program must check number of argument is one. If number of argument is not one, your program must display error message and exit. For example)
./sum.sh 345 Sum of digit for number is 12
./sum.sh You need pass one numerical argument
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