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Unix

Unix
The agency that sits between the user and the UNIX system is called the

logic
erxc
profile
shell

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Unix
Which of the following commands is used to display the filenames in multiple columns?

ls -x
ls -1
lc
None of these
ls

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Unix
Which commands is used to assign executable permission to all of the files named "letter"?

chmod u+x letter
chmod ugo+rw letter
chmod ugo+x letter
chmod ugo+r letter

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

:w
None of these
:q
:x
q!

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Unix
Which command is used to remove the read permission of the file 'note' from both the group and others?

chmod go-x note
chmod go+r note
chmod go-r note
chmod go+rw note

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Unix
Which command is used to make all files and sub-directories in the directory (progs) executable by all users?

chmod -1 a+x progs
chmod -R 222 progs
chmod -x a+x progs
chmod -R a+x progs

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