{"id":8764,"date":"2019-02-22T15:48:25","date_gmt":"2019-02-22T10:18:25","guid":{"rendered":"https:\/\/www.monsterindia.com\/career-advice\/top-15-frequently-asked-shell-scripting-interview-questions-8764\/"},"modified":"2023-07-21T11:02:31","modified_gmt":"2023-07-21T05:32:31","slug":"frequently-asked-shell-scripting-interview-questions","status":"publish","type":"post","link":"https:\/\/www.monster.co.th\/career-advice\/frequently-asked-shell-scripting-interview-questions\/","title":{"rendered":"Top 15 frequently asked Shell Scripting Interview Questions"},"content":{"rendered":"\n

Computers have revolutionized the way in which we interact with the world. Today we use this technology for even the most basic of our daily tasks. Charting out our weekly schedule, making grocery lists or just small reminders about a friend\u2019s anniversary.<\/span><\/p>\n\n\n\n

However, the way in which we interact with computers too has greatly changed. The first-generation computers were huge and operated through the input of binary code-1s and 0’s. Today, there are programs that have substituted this method of instruction input.<\/span><\/p>\n\n\n\n

Shell are programs that interpret your instructions written in plain English and communicate with the system kernel in order to carry out the instructions. Writing these programs, called Shell Scripting, is a sought-after job by both freshers and experienced programmers in the field. <\/span><\/p>\n\n\n\n

Here are the 15 of the most commonly asked questions for Shell Scripting that you can go through before heading for a job interview.<\/span><\/p>\n\n\n\n

1. What is Shell Scripting and why is it important?<\/strong> <\/span>
Shell acts as a link between you and the operating system, allowing you to give commands to the computer. Shell Scripting is important because you can use it to execute a sequence of commands in bulk rather than one instruction at a time. <\/span><\/p>\n\n\n\n

2. What are the most common Shell types?<\/strong> <\/span>
There are 4 major Shell types: Bourne Shell (sh), C Shell (csh), Korn Shell (ksh) and Bourne Again Shell (bash). <\/span>
Of this, the (bash) type is the most frequently used. <\/span><\/p>\n\n\n\n

3. How do you begin and end execution of a Shell Script?<\/strong> <\/span>
You can make the script executable through the UNIX chmod command. <\/span>
To terminate the program, you can use the \u2018fi\u2019 command. <\/span><\/p>\n\n\n\n

4. What are hard links and soft links?<\/strong> <\/span>
\u2018Links\u2019 are shortcuts that you can create on Linux. <\/span>
Soft link can be kept on different file systems and are linked to the file name. Hard links, however, are linked to the inode of your file and need to be kept on the same file system as your file. <\/span><\/p>\n\n\n\n

5. What is a zombie process?<\/strong> <\/span>
A zombie process is a program that is no longer functional but still hasn\u2019t had its exit status picked up by the [aren\u2019t process. This way it still has its process id entry in the table. <\/span><\/p>\n\n\n\n

6. How many kernels and shells come with a UNIX OS?<\/strong> <\/span>
Typically, you can have about 280 shell scripts that are available with the UNIX OS, while one kernel is available in the environment. <\/span><\/p>\n\n\n\n

7. Can shell scripting be used for all situations?<\/strong> <\/span>
It is recommended that you avoid shell scripting in situations that require a high degree of productivity, complex writing task or when various software tools are required.<\/span><\/p>\n\n\n\n

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