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Unix

Unix
Which of the following keys is used to replace a single character with new text?

S
R
s
r

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Unix
Which command is used to move all files to the bin sub-directory of the parent directory?

None of these
mv * ../bin *.*
mv *.* /bin/
mv * /bin/*
mv * ../bin

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Unix
The field separator in cut command is specified with

#NAME?
None of these
-c
-r option

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Unix
Which option is used with rm command to make the command prompt the user with each filename and a ?, before acting on it

-r
#NAME?
None of these
-1

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Unix
If a file has read and write permissions for the owner, then the octal representation of the permissions will be

1
6
5
None of these
3

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Unix
Which of the following is invalid filename?

None of these
TRY
my .file
trial

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