Question { 8086 }

what are filters?

Answer

filters are also a special editor to change in the file..
like by sed we can replace words.. by cut we can cut the
portion of a file and stored in another file...etc....



thanx
rajeev shukla

Question { 7084 }

When the shell is reading the command line what is the
difference between text enclosed between
double quotes ( ” ) and text enclosed between signal quotes
( ’ )?

Answer

" " is generaly used to print the value of variable
and ' ' is used to print same as given text...
for ex:-
f=rajeev
echo "file name is $f"
output:- file name is rajeev.
and
echo ' file name is $f'
output:- file name is $f

Question { TCS, 19450 }

can we use cat command as an editor ..???

Answer

hiiii rupali you have a nice mind..:)