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Linux

Linux
What command is used to display a file contents in octal form?

cd
oct
of
od

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Linux
What command is used to summarize the disk usage?

du
disk
fdisk
chkdsk

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Linux
What command is not used to list the files chap01, chap02 and chap04?

ls - x chap0[124]
ls chap*
ls chap[124]
None of the listed here

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Linux
What script is run for setting bash global defaults for all users?

/etc/.profile
/etc/profile
/etc/.log
None of these
/etc/.bashrc

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Linux
What command is used with vi editor to append text at end of line?

a
i
None of these
I
A

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Linux
What command is used with file named 'letter' to remove the executable permission from the user and assign read permission to the group and others?

chmod u - x, go + r letter
chmod go + r, u + x letter
chmod g - x, uo + r letter
chmod go + x, u - x letter

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