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Unix Interview Questions
Questions Answers Views Company eMail

What are raw sockets?

Axis Technologies,

4 15020

What command is used to execute system calls from exe?

Axis Technologies,

3 12279

What command is used to replace the existing string with some other?

TCS,

8 23565

What are Profilers?

Axis Technologies,

1 7992

How to connect oracle database from unix

Cap Gemini, IBM, Wirecard,

6 53451

What Command is used to make a directory?

IBM,

4 11556

Give Command that will move a single file called "unix.txt"

IBM,

7 14791

Give command that will make the file "run.sh" executable?

IBM,

10 22103

Give Command that will change the name of a directly from paypal to eBay

Alcatel, IBM,

3 12476

How does a user get the current date, time in UNIX?

IBM,

6 18327

What Command will remove a Directory in UNIX?

IBM,

8 21708

How does the user view the contents of a text file in UNIX?

IBM,

9 15149

What command will bring user back to their home directory in UNIX?

IBM, Wipro,

13 24652

What command a user use to view a long text file one page at a time in UNIX?

IBM,

8 18385

What command would users use to see what file one page at a time in UNIX?

IBM,

7 14909


Un-Answered Questions { Unix }

List the different types of files that can be made available with unix?

918


What is s and g in sed command?

1120


Why unix terminals are called dummy terminals?

1090


win 3.1 is a

1131


What is active unix domain sockets?

906


Tell me when should we use thread-safe "_r" library calls?

891


What is the use of -l when listing a directory?

895


What does the metacharacter mean?

1141


When i run a programm of orphan process. Instead of getting child's parent (ppid)=1 ..i get 1400 and it varies as per system. How can i findthe right soluion??? My pgm: #include # include int main() { int pid; pid=fork(); if(pid < 0) {exit(-1);} else if(pid==0) { printf("Child Process is Sleeping ..."); sleep(10); printf("Orphan Child's Parent ID : %u ",getppid()); } else { printf("Parent Process Completed ... %u ",getpid()); exit(0); } return 0; } Output:

2273


how to kernel protected memory?

2374


What is source unix?

913


What do you understand by the term wild-card interpretation?

908


What is the explanation for protection fault?

1044


What is unix operating system and its features?

924


What is unix ipc?

1016