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Unix

Unix
Which of the following commands is used to identify the type of file by context?

cat
more
file
ls

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Unix
The UNIX file system stores a date in physical blocks of

None of these
256 bytes
512 bytes
1024 bytes
2048 bytes

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Unix
Which command is used with vi editor to save file and remain in the editing mode?

:x
:w
q!
:q
None of these

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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

None of these
1
3
5
6

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Unix
Which of the following commands is used to have a two-way communication with any person who is currently logged in?

mesg
None of these
write
mail
grep

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Unix
Which of the following commands is used to get directory one level up?

cd/
cd ..
None of these
cd
chdir

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