Hi,
I have a few questions to be answered.Please help me out in this.Its urgent.

1) what does ' $* ' mean, what does it do ?
2) Command to change UNIX Password.
3) What is Daemon processes ?
4) How do u execute a Unix command or process in the background ?
5) What is nohup ?
6) Difference between softlink and hardlink ?
7) Command to display space usage on a UNIX file system ?
8) How would you change alloccurances of a value using VI ?

please help.

cheers.

hard link and soft link?
hard link associates 2 or more file names with the same inode. Hard links share the same data blocks on the hard disks, while they continue to behave as independent files

Soft link or symbolic link (or for short: symlink): a small file that is a pointer to another file. A symbolic link contains the path to the target file instead of a physical location on the hard disk. Since
inodes are not used in this system, soft links can span across partitions.

Is this homework? Sounds like homework.

-X

again the homework, get "UNIX in 24 hours" book or "UNIX Essentials and UNIX Core" DVD as they addresses all of these questions.

Why not search on Google (or any other search engine)? Save yourself a few bucks.

Doesn't anyone else see that this is homework...?

How to change password, check this: man passwd

For nohup, check this: man nohup

For space usage in a file system: For regular expressions help, check this: Regular Expressions

For daemon process info, check this: WhatisDaemon

To run the job in background, check the manual pages of: bg & fg

For $*, see the man page of sh: man sh

Hope it helps.

Regards,
Tayyab