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Unix

Unix
Which command will be used with vi editor to insert text to left of cursor?

s
i
S
a

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Unix
Which symbol will be used with grep command to match the pattern pat at the end of a line?

pat$
^pat
None of these
$pat
pat^

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

s
r
R
S

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Unix
The octal representation 652 indicates

None of these
All of these
Read and write permission of groups
Execute permission for the owner
Write permission for others

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Unix
The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is

tr
grep
sort
tee

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Unix
Which command is used to list all the files with extension .lst?

ls *.*
ls *[lst]
ls -l *.lst
ls lst*

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