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A shell script is used to automatically enter a series of commands without having to make the user type them out.

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15y ago

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What is the Purpose of exit command in Shell of Unix?

The 'exit' command allows you to stop a running shell script at any point and to return a "status" value back to whomever called the shell script. This is a very common practice with shell scripts; sometimes you want to stop the script before it gets to the end of the shell script (for various logic reasons). The 'exit' command also allows you to give a status that any other calling process can use to determine if the shell script ended successfully or not.


What is the command to execute a shell script?

If the shell script is readable and executable then to execute it just type the name of the shell script file. Otherwise, you can explicity call a shell interpreter to run the file as a shell script, i.e., ksh myfile


Can you execute a shell script if you do not have read permission for the file containing the script?

No, the shell needs both execute and read permissions to run the script.


What is the purpose of using echo command?

The echo command echoes out any of the command line arguments given to it. It is commonly used in shell scripts to echo what portions of the shell script are doing.


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You don't need a shell script for that; use either 'whoami' or 'id'


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Essentially, a command in Unix is a program that you execute for a certain purpose. It could be anything, from a shell script, to copying or deleting files, etc.


How do you compile and run shell script of factorial?

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How do you write a shell script which counts the last 10 lines present in a given file?

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