distinguish between paging and swapping?

3 Answers   Infosys,

---

distinguish between user mode and kernel mode?

4 Answers   Infosys,

---

What is grep and sed command?

1 Answers  

---

Who command in unix operating system?

0 Answers  

---

what will this do $cat > file.c ?(file.c is a file in current directory)

20 Answers   IBM,

---

what are processor execution levels and priorities?

2 Answers   Infosys,

---

Hi All, Can you please let me know how to grep for a particular pattern in unix. I want to print the dates from the file exp.txt. the date pattern is DD:MM:YYYY, I just want to print all the dates from the file exp.txt.

8 Answers   Concentrix, IBM, Symantec, TCS,

---

What is the difference between pipe (|) and tee command in unix

14 Answers   Cap Gemini, TCS,

---

How do you repeat a command in terminal?

0 Answers  

---

Sorry to all Technical person for mistake of Question. Now i am post currect question Why copied file permission is changed in destination. When i give all permission i.e 777 to file and copy that to other location in destination the permission is 755. But if give permission 555 in destination that file permission is 555 and if give permission 444 to file after copy in destination the file permission is 444. These all are happening in normal user. How the umask value is calculate here really i am not understand. Please write the proper answer. Thanks in Advance

3 Answers   TCS,

---

Write a command that will allow a unix system to shut down in 15 minutes, after which it will perform a reboot.

0 Answers  

---

distinguish between multi-tasking,multi-user,multi- processing and time sharing?

4 Answers   Infosys, Nikhil Construction,

---