What is an HTML “entity”?
An entity is a specific character string that has the effect of causing a formatting program to select and present a particular character or notation. Read more »
Archive for March, 2006
Which adjectives would you use to describe yourself?
Answer with positive, work-oriented adjectives, such as conscientious, hard-working, honest and courteous, plus a brief description or example of why each fits you... Read more »
Why did you choose your college major?
The interviewer is likely fishing to see if you are interested in your field of work or just doi� a job to get paid. Explain why you like it. Besides your personal... Read more »
What is the use of ‘grep’ command?
‘grep’ is a pattern search command. It searches for the pattern, specified in the command line with appropriate option, in a file(s). Syntax : grep Example :... Read more »
What difference between cmp and diff commands?
cmp - Compares two files byte by byte and displays the first mismatch diff - tells the changes to be made to make the files identical Read more »
What is the significance of the “tee” command?
It reads the standard input and sends it to the standard output while redirecting a copy of what it has read to the file specified by the user. Read more »
Is ‘du’ a command? If so, what is its use?
Yes, it stands for ‘disk usage’. With the help of this command you can find the disk capacity and free space of the disk. Read more »
How to terminate a process which is running and the specialty on command kill 0?
With the help of kill command we can terminate the process. Syntax: kill pid Kill 0 - kills all processes in your system except the login shell. Read more »
Explain kill() and its possible return values.
There are four possible results from this call: ‘kill()’ returns 0. This implies that a process exists with the given PID, and the system would allow you to... Read more »
What does the command “ $who | sort –logfile > newfile” do?
The input from a pipe can be combined with the input from a file . The trick is to use the special symbol “-“ (a hyphen) for those commands that recognize the... Read more »
What are shell variables?
Shell variables are special variables, a name-value pair created and maintained by the shell. Example: PATH, HOME, MAIL and TERM Read more »
How many prompts are available in a UNIX system?
Two prompts, PS1 (Primary Prompt), PS2 (Secondary Prompt). Read more »
Is it possible to create new a file system in UNIX?
Use ‘su’ command. The system asks for password and when valid entry is made the user gains super user (admin) privileges. Read more »
What is the use of DESC in SQL?
DESC has two purposes. It is used to describe a schema as well as to retrieve rows from table in descending order. Explanation:-The query SELECT * FROM EMP ORDER... Read more »
What are the privileges that can be granted on a table by a user to others?
Insert, update, delete, select, references, index, execute, alter, all. Read more »