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Unix

Unix
Which of the following commands is used to view your file 24 lines at a time?

None of these
/p
cat
lp
pg

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Unix
Which commands is used to assign executable permission to all of the files named "letter"?

chmod ugo+rw letter
chmod ugo+r letter
chmod ugo+x letter
chmod u+x letter

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Unix
Which of the following commands is used to have a two-way communication with any person who is currently logged in?

write
grep
mesg
None of these
mail

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Unix
Which of following commands is used for an automatic reminder service?

write
calendar
mesg
None of these
mail

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Unix
Which command is used to copy a file wb with the same name from the programs directory to the misc directory?

copy programs/wb misc/wb
copy a:programs/wb b:misc/wb
tar programs/wb misc/wb
None of these
cp programs/wb misc

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Unix
The first set of the three permissions (rw) pertains to the owner of the file, indicating that the owner has

executable permission only
None of these
write and executable permissions
both read and write permissions
both read and executable permissions.

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