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Unix

Unix
Which command is used to link the files?

None of these
lk
cp
ln
tar

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Unix
Which command is used to display the characteristics of a process?

ps
au
pid
du

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Unix
Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters?

more [emp][!0-9]
cat emp[!0-9]
cat emp[a-z]
cat emp[x-z]

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Unix
Which of command is used to copy a file?

cp
cpio
None of these
copy
tar

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Unix
The second set of the three permissions (r-) indicates that

group has read permission only
group has write permission only
owner has read permission only
other has read permission only

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Unix
If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use

tty ^c
stty echoe
stty intr ^c
stty echo ^a

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