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Shell Scripting Interview Questions and Answers

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Ques 6. How can you check if a file exists in a shell script?

You can use the `test` command or the `[ -e file ]` syntax to check if a file exists.

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Ques 7. What is the purpose of the `trap` command in a shell script?

The `trap` command is used to catch signals and execute a command when they occur.

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Ques 8. How do you read input from the user in a shell script?

You can use the `read` command to read input from the user.

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Ques 9. Explain the use of the `grep` command in shell scripting.

The `grep` command is used to search for a pattern in text files.

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Ques 10. What is the purpose of the `cut` command in a shell script?

The `cut` command is used to extract specific columns or fields from a text file.

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