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 6227

boot process?

Atos Origin, Wipro,

2 7554

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:

2201

how to unzip the contents of the gzip file

Epsilon,

1 3293

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

Epsilon,

1729

How to find $ai_serual resolved path by using unix

1637

What does 'mkdir' command do in UNIX?

Syntel, Visa,

1237

What is the functionality of a top command?

Amazon,

1050

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

CGI,

1107

What is the use of touch command in there?

Accenture,

1 2287

What is ‘ps’ command for?

1134

What is the significance of the 'tee' command?

1136

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

1238

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

1173

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

1249

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Un-Answered Questions { Unix Commands }

Name the various commands that are used for the user information in unix.

1019

hw will u use awk in replacing cahrs and files

3180

Differentiate cat command from more command.

1083

Why is it called grep?

969

How do I open a port?

1036

Is grep faster than awk?

986

How do I use grep to search for a file?

1010

Who wrote grep?

1013

What is the use of cut command in unix?

1292

why metadb requires a seperate slice to create Solaris volume manager

3079

Who invented grep?

1105

What is the use of find command in unix?

1073

What are bash commands?

1091

How do I search a whole word in vim?

1126

What command is used to switching between users in unix?

1025

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