Simple .sh script Write a SHELL script sumPairInt.sh that calculates and displays the sum of the digits in the even positions of a of a numeric value passed as an argument to the script. For example, the call sumPairInt.sh 234568 displays as result the value 16 : 3+5+8 = 16. Your script must validate the number of arguments and the type of argument (a positive integer). If the argument value is not valid, you must display the message indicating the correct use of the script and finish the execution.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Simple .sh script

Write a SHELL script sumPairInt.sh that calculates and displays the sum of the digits in the even positions of a
of a numeric value passed as an argument to the script. For example, the call sumPairInt.sh 234568
displays as result the value 16 : 3+5+8 = 16. Your script must validate the number of arguments and the type
of argument (a positive integer). If the argument value is not valid, you must display the message indicating the correct use of the script and finish the execution.

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