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Unix

Unix
Which of the following commands is not the vi Input mode command?

rch
j
S
None of these
R

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Unix
The UNIX file system stores a date in physical blocks of

1024 bytes
2048 bytes
256 bytes
512 bytes
None of these

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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
sort
grep
tee

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

a
s
S
i

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Unix
Which command will be used with vi editor to append text at end of line?

None of these
I
a
i
A

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Unix
Which of the following shell's wildcards are used to match any number of characters including none?

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

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