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Unix

Unix
Which of the following is not a filter?

wc
sort
grep
None of these

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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
who am i
None of these
1 /u
which

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Unix
Which is the earliest and most widely used shell that came with the UNIX system?

C shell
None of these
Bourne shell
Korn shell
Smith shell

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Unix
The File that contains a set of instructions which are performed when a user logs in, is

.profile
None of these
.autoexec
.exrc
autoexec.bat

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Unix
Which of the following commands is used to change the working directory?

None of these
changedir
cdir
chdir
cd

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Unix
Which command is used to assign only read permission to all three categories of the file 'note'?

chmod u+r,g+r,o-x note
chmod ugo=r note
None of these
chmod go+r note
chmod a-rw

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