giridhar


{ City } navi mumbai
< Country > india
* Profession *
User No # 55879
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Total Answers Posted # 3

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Answers / { giridhar }

Question { 11870 }

what is the use of uniq commmand?


Answer

uniq command search the uniq data in file and if some
duplicate date then it put only single records in report.

For Example: cat testnumber.txt | uniq

File contents:
1233
456
678
1233
678

output file shows:
1233
456
678

Is This Answer Correct ?    3 Yes 7 No

Question { Nokia, 35066 }

Write a grep (or grep) command that selects the lines from
a file that have exactly three characters.


Answer

grep -b "abc"

Is This Answer Correct ?    2 Yes 10 No


Question { CTS, 10629 }

What is an Environment Variable?


Answer

Environment variable are a set of variable and you can
change the value anytime or you pass any value given
Variable.

Is This Answer Correct ?    8 Yes 7 No