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

Linux Commands Interview Questions

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Hi All of Unix/Linux professional Q.Why soft link file not open by cat command. Ihave make following symbolic link but when i open with #cat linkfilename it does not oped please see the following code and try to answer. # ln -s file1 ~/mydir/filea [root@dhcppc0 ~]# cd mydir [root@dhcppc0 mydir]# ls -l total 4 lrwxrwxrwx 1 root root 5 2010-04-04 09:04 filea -> file1 [root@dhcppc0 mydir]# cat filea cat: filea: No such file or directory

2 5035

what is linux utilities and editor

Oracle, Wipro,

4 8410

what is snmp and for what purpose we are using in linux

4 8072

if i run ls command it will show me the junk output what is problem and how to resolve it

BPO,

2 7981

if i have one folder say aaa and that folder having 100 files from that 50 files there aaa word is written how to find in which aaa is writen and without opening that file

6 8374

what r the different command to check ram,process and hdd of linux machine

4 8400

A file which is not deleted by normal user and also root (using rm), for that type of file how we delete it?

CTS,

5 11662

I lost a root password and i need to give it, I treid to change it through single usermode even though i am not get a password, then what is the other procedure to give a root password?

8 9876

My linux machine is crashed due to root file system, I need not to bother about the root file system, but i need to take care of /etc, /usr, like that.,, can i recover these file systems?

2 6018

How can I know my linux os is 32 bit or 64 bit? and How can i know my CPU is 32 bit or 64 bit in linux machine environment.?

7 12941

I want to kill zombie process, but with using kill 9 i cannot kill that process? can u tell other commands?

CTS,

3 10995

In my linux machine, i lost /etc/passwd file and /etc/shadow file, then how can i recover it?

Google,

5 17907

Difference between swap partition and swap file?

IIHT, TATA, Wipro,

4 22156

How to monitor ports in a linux machine, with single command?

7 13465

What is the status code 403,404 represented in apache server?

2 7118

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Un-Answered Questions { Linux Commands }

How can we increase disk read performance in single command?

1000

How does diff command work?

923

How do you create a text file in linux terminal?

980

What is difference between sh and bash?

958

Explain about gzip filename?

933

What does bash stand for?

1000

How do I permanently set ulimit in linux?

913

What is tty in linux process?

974

What are the 4 kinds of sentences with examples?

979

What is du -s * | sort -k1,1rn | head command used for?

858

How do I run bash on windows?

980

How do you ask politely?

967

How do you insert comments in the command line prompt?

1131

How many types of commands are there in linux?

1013

What command would you use to check how much memory is being used by linux?

986

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