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

Unix Interview Questions

Questions Answers Views Company eMail

What is the difference between udp and tcp?

2 10698

Am using Mac OS 10.4.11 on an Imac (PPC) Internal hard disk got named disk0s3 and will not mount. What commands can be used in TERMINAL to rename the internal hard disk to C96?

2561

their is a file1,file2 and i want to append file1 data to file2?

IBM,

9 14525

how you know the ip address of user system?

Polaris,

9 12605

how to list all the hidden files?

Polaris,

10 14358

what is the default permission for /etc/shadow file in UNIX

Wipro,

2 9695

why metadb requires a seperate slice to create Solaris volume manager

Wipro,

3086

which script will invoke first ,when /etc/init.d starts

1 6397

What is the command to check ports active in UNIX?

Accenture, IBM,

4 13340

what these two commands prints "echo test","cat test"?

TCS, Wipro,

6 16218

how to kernel protected memory?

2329

How to give root privileges without using SU/sudor ?

1 5970

what is difference between milestone and run-levels in Solaris ?

3033

How to get the last ten lines of a file using awk utility?

Infosys,

1 8568

Is this the command to connect oracle from unix? sqlplus -s username/password. Then what is the -S here...????

TCS,

1 5584

Un-Answered Questions { Unix }

What is difference between unix and windows operating system?

955

What is home directory in unix?

852

How do I grep multiple patterns in unix?

972

What are some common shells and what are their indicators?

1160

Tell me how to protect a process from others to kill?

788

Explain the architectural differences between user-space threads, and kernel-supported threads?

914

Is tcp or unix socket faster?

793

What are system variables in unix?

1080

How do I delete files older than 2 days unix?

911

Explain about Inodes?

1069

What is awk good for?

1094

How to null a file in unix?

1096

Please describe the initial process sequence while the system boots up?

965

Describe the term inode?

1026

Please explain fork() system call?

936

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