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Unix

Unix
Which of the following files will displayed by this command cat *ch*

.ch
patch
All of these
catch

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Unix
Which of the following set options is used with vi editor to ignore case while searching for patterns?

sm
ic
ts
ai

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Unix
Which of the following commands is used to update access and modification times of a file?

touch
cat
grep
wc

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

2048 bytes
256 bytes
None of these
512 bytes
1024 bytes

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Unix
Which command will be used with vi editor to replace single character under cursor with any number of characters?

A
S
a
s

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Unix
The octal representation 652 indicates

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

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