Unix Commands Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Unix Commands Interview Questions

Questions Answers Views Company eMail

solaris Run level?

Wipro,

3 6239

boot process?

Atos Origin, Wipro,

2 7563

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:

2209

how to unzip the contents of the gzip file

Epsilon,

1 3303

how to sort the content of the file based on numeric values

Epsilon,

1734

How to find $ai_serual resolved path by using unix

1651

What does 'mkdir' command do in UNIX?

Syntel, Visa,

1256

What is the functionality of a top command?

Amazon,

1057

What are the commands in UNIX to list the files in a Directory?

CGI,

1115

What is the use of touch command in there?

Accenture,

1 2293

What is ‘ps’ command for?

1144

What is the significance of the 'tee' command?

1140

What does the command ' $who | sort –logfile > newfile' do?

1243

What does the command '$ls | wc –l > file1' do?

1178

How is the command '$cat file2 ' different from '$cat >file2 and >> redirection operators ?

1260

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Un-Answered Questions { Unix Commands }

What is ‘ps’ command for?

1144

What are the dos commands?

1199

Why is awk called awk?

1028

What is the use of the command 'ls -x chapter[1-5]' ?

1160

Are you in or at the office?

1078

Is there any method to erase all files in the current directory, along with its all sub-directories, by using only one command?

1154

What is rmdir command?

1051

Can you enlist some commonly used network commands?

1057

What does awk stand for?

1041

Give the command for finding the current date.

1043

Which command is used to create a directory?

1099

What does 'mkdir' command do in UNIX?

1256

Name the general commands in using unix os for a beginner?

1096

What are grep patterns?

1030

How do I use grep to search for a file?

1016

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