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Unix

Unix
Which shell's wild-cards is used to match a single character?

None of these
*
?
[ijk]
[!ijk]

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Unix
Which command will be used with vi editor to replace text from cursor to right?

r
c
C
R

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Unix
In Bourne shell, which file sets the Unix environment for the user when the logs into his HOME directory.

None of these
.profile
.exrc
lastlogin
.mbox

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Unix
Which of the following signs is used to back up over typing errors in vi?

$
!
None of these
@
#

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Unix
Which of the following is invalid filename?

trial
None of these
TRY
my .file

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

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

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