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Shell Scripting Pertanyaan dan Jawaban Wawancara

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Ques 16. What is the purpose of the `basename` command in shell scripting?

The `basename` command is used to strip directory and suffix from filenames.

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Ques 17. How can you check the status of the last command in a shell script?

You can use the `$?` variable to check the exit status of the last command.

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Ques 18. Explain the use of the `expr` command in shell scripting.

The `expr` command is used for evaluating expressions in shell scripts.

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Ques 19. What is the purpose of the `export` command in shell scripting?

The `export` command is used to make environment variables available to child processes.

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Ques 20. How do you use the `while` loop in a shell script?

The `while` loop is used to repeatedly execute a block of statements as long as a condition is true.

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