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 5126

what is linux utilities and editor

Oracle, Wipro,

4 8588

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

4 8250

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

BPO,

2 8104

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 8585

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

4 8568

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 11846

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 10169

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 6164

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 13192

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

CTS,

3 11132

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

Google,

5 18080

Difference between swap partition and swap file?

IIHT, TATA, Wipro,

4 22365

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

7 13775

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

2 7220

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Un-Answered Questions { Linux Commands }

What is mkdir p?

972

What is sudo bash command?

1032

You want to copy the user’s home directories to a new location. Which of the following commands will accomplish this?

986

How do I check memory usage on linux?

1097

Is cmake only for c++?

987

What the command used for search file or files for specific text?

894

How do you create a blank file in linux?

1013

How do I know my shell?

977

Explain about gzip filename?

975

What are the command prompt commands?

1076

How can I check the exit status of my previous command in Linux operating system?

981

What does chmod do in linux?

1098

What command used for showing user info like Login Name, Canonical Name, Home Directory,Shell etc in Linux?

1163

How do I overclock my cpu?

959

What is the use of cp p command?

1097

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