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Unix

Unix
Which command is used to sort the lines of data in a file in reverse order

sort
sh
sort -r
st

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Unix
Which of the following options will be used to display number of blocks used by a file?

-c
None of these
#NAME?
-r option

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Unix
Which of the following commands is used to display the filenames in multiple columns?

ls -x
None of these
ls -1
ls
lc

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Unix
Which command is used to make all files and sub-directories in the directory (progs) executable by all users?

chmod -1 a+x progs
chmod -R a+x progs
chmod -R 222 progs
chmod -x a+x progs

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Unix
Which command is used to copy all files having the string chap and any two characters after that to the progs directory?

cp chap[12] /progs/*.*
cp chap?? /progs/*
cp chap?? progs
cp chap* progs

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Unix
Which of the following commands is used to list contents of directories?

tar
lp
ls
dir

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