Answer / Dhananjay Singh

Unix is a popular family of multiuser, multitasking operating systems. There are several variants of the Unix system, each with its own specific characteristics and implementations. Some common types include:

1. System V (System V Release 4, also known as SVR4)
2. BSD (Berkeley Software Distribution)
3. Linux - an open-source Unix-like operating system based on the Linux kernel
4. AIX (Advanced Interactive Executive) developed by IBM for their RS/6000 and Power Systems hardware platforms
5. Solaris - Sun Microsystems' implementation of Unix, now owned by Oracle

What is a superuser?

1 Answers  

---

Write a script that prints out date information in this order: time, the day of week, day number, month, year(sample output: 17:34:51 pdt sun 12 feb 2012)

1 Answers  

---

What are system variables in unix?

1 Answers  

---

Is unix cli or gui?

1 Answers  

---

1)How to schedule a job,that will periodically execute in second by crontab? 2)I know only second specific time to execute the job. like 10 10 * * * sleep 40&&ps -l>/dev/pts/1 It will execute at 10:10:40 AM but do not know how to execute 15 second,30 second so on at 10:10 am.

3 Answers   Qwest,

---

What are data structures that are used for Demand Paging?

1 Answers  

---

What are conditions on which deadlock can occur while swapping the processes?

1 Answers  

---

How does unix file system work?

1 Answers  

---

Is ios based on unix?

1 Answers  

---

How to find out what processes are running in the background in unix?

1 Answers  

---

Is windows unix like?

1 Answers  

---

Explain superblock in unix.

1 Answers  

---