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Unix

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

r
S
s
R

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Unix
The command chmod 761 note is equivalent to

chmod u=rwx, g=rw, o=x note
None of these
chmo a =761 note
chmod 4=7, g=6,0 =1 note
chmod 167 note

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Unix
Which of the following commands can be used to get information about all users who are currently logged into the system?

who
1 /u
which
who am i
None of these

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Unix
The chmod ugo+rw note command can be represented in octal notation as

chmod 555 note
chmod 666 note
chmod 444 note
chmod 333 note

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Unix
Which of the following files will displayed by this command cat *ch*

patch
All of these
catch
.ch

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Unix
Which command is used to display the characteristics of a process?

pid
du
au
ps

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