Puzzler In the script you wrote for Lab Exercise
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Get it written →Puzzler In the script you wrote for Lab Exercise 4, if the file does not exist, grep prints an error message. This will be confusing to beginners. Add a test at the start of that script that prints the error message script_name: file file_name cannot be read where script_name is the name of the script and file_name is the name of the file that the user gives. Call this script "lookforp1.sh".
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