Shell Interview Questions

Last Updated: Nov 10, 2023

Table Of Contents

Shell Interview Questions For Freshers

Name some commonly used shells in Unix/Linux.

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What are the basic components of a shell?

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How do you check the current shell in Unix/Linux?

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What is an environment variable?

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How do you set an environment variable in Unix/Linux?

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What is the difference between an absolute path and a relative path?

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How do you list files in a directory using a shell command?

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What is the purpose of the 'echo' command in shell scripting?

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What is command substitution in a shell script?

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How do you create a new directory using a shell command?

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What is a wildcard character in shell scripting?

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How do you redirect standard output to a file?

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What is a shell in Unix/Linux?

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Shell Intermediate Interview Questions

How do you find and replace text in a file using shell commands?

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What is process substitution in shell scripting?

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Explain the concept of job control in Unix/Linux.

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What is the purpose of the 'grep' command?

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What is a process in Unix/Linux?

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How do you run a shell script?

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What is the purpose of the 'chmod' command?

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How do you use command-line arguments in a shell script?

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What is a shell function?

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How do you use loops in shell scripting?

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Explain the concept of file permissions in Unix/Linux.

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What are standard input, standard output, and standard error streams?

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How do you assign the output of a command to a variable in a shell script?

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What is a conditional statement in shell scripting? Give an example.

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What is the difference between single quotes and double quotes in shell scripting?

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How do you use arrays in a shell script?

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Shell Interview Questions For Experienced

What is process substitution in shell scripting?

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What is an alias in shell scripting?

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What is process substitution in shell scripting?

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How do you debug a shell script?

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Explain the concept of signals in Unix/Linux.

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What is process substitution in shell scripting?

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How do you handle errors and exceptions in shell scripting?

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What are here-documents in shell scripting? Give an example.

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What is process substitution in shell scripting?

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How do you write a shell script to automate a task?

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How do you use regular expressions in shell scripting?

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Explain the concept of process substitution in Unix/Linux.

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What is process substitution in shell scripting?

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How do you handle input/output redirection in a shell script?

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What is process substitution in shell scripting?

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How do you write a shell script to interact with a user?

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What is process substitution in shell scripting?

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How do you use advanced features like process substitution and command substitution together in a shell script?

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What is process substitution in shell scripting?

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How do you write a shell script that behaves differently based on the user's input?

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What is process substitution in shell scripting?

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