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Linux Commands Interview Questions
Questions Answers Views Company eMail

what is the difference between RHEL4 & RHEL5?

TCS,

3 8252

i dont know root password then this situation can we change or break root password to ant process

5 4771

How to block the message in wall command some students are send messages to all in the lab. please help me

5 10919

1. Why "d" is postfix in almost every service name of Linux like httpd, dhcpd? 2. how to restrict su & ssh services for some users? 3. how can we configure a default gateway for 10 n/w cards in a server?

6 5161

Write a cron entry for the following scenario:- At 10:30 AM for every Sunday of every 1st month of a quarter.

HP, IBM,

7 8944

who invented unix?

Wipro,

3 5194

what are the init levels in Linux?

3 4406

Explain Backup Managment commands in Linux.

5 5350

Compare between SYS V launched processes and Xinetd processes in Linux.

1 3418

What command can you use to review boot messages?

TCS,

3 5120

What command you execute to display the last five commands you have entered?

4 7220

Which two commands can you use to delete directories?

2 4957

our wish to print the file vacations with 60 lines to a page. Which command will accomplish this?

2 2734

To move /home/ben/memos dir in /home/bob/memos, what is the result by mv /home/ben/memos /home/bob

4 3681

What is the command to list ALL (hidden also) files of current directory & it’s subdirectories?

6 5590


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Un-Answered Questions { Linux Commands }

What does the ps command do in linux?

124


What is $@ in shell?

121


What is linux pwd (print working directory) command?

132


What is cpu in linux?

132


What command can you use to make a tape archive file of a /home directory and send it to the /dev/tape device?

138






How do I find the process id in linux?

118


Which commands are used to set a processor-intensive job to use less cpu time?

143


How do I run a .sh file in linux?

116


You have a tab delimited file called phonenos and want to change each tab to four spaces. What command can you use to accomplish this?

146


What is llvm used for?

120


What does grep grep do?

122


What is ll command in unix?

155


What does comm do and how to use it?

138


What is DISM command?

110


The ‘logout’ built in command is used to

154