Answer / abhilash s

egrep (grep -E in linux) is extended grep where additional
regular expression metacharacters have been added like +, ?,
| and ()

Answer / tiger6

egrep is a command that allow you to generate a listing
using variables
egrep "First|Last"

this would produce a listing that gave only the data from
the file queried that were associated with the variables
Firt and Last.
example if the the list held First names and Last names you
might see a list like this
Jame Martin
Tom Jones ...

how can you say that unix operating system provides more security than other operating systems.

1 Answers  

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Explain about Inodes?

0 Answers   Amazon,

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differentiate between named & unnamed pipe.

11 Answers   Cisco, IIT, ISEC,

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What is the difference between internal and external commands?

13 Answers   BPL, DOEACC, Engro, Kuvempu University, NIIT, TCS,

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What UNIX command will control the default file permissions when files are created?

3 Answers  

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The UNIX shell is.... a).does not come with the rest of the system b).forms the interface between the user and the kernal c) does not give any scope for programming d) deos not allow calling one program from with in another e) all of the above

2 Answers   IBM,

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What do you mean by u-area (user area) or u-block?

6 Answers  

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How to set Windows as Default OS when Dual Booting Ubuntu?

1 Answers  

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What are the main differences between Apache 1.x and 2.x?

1 Answers   IBM,

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What does init do? What does inetd do?

1 Answers  

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virtual terminal protocol is an example of which layer and works with which layer?

1 Answers   DOEACC, Virtusa,

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What is mutex?

2 Answers   BMC,

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