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Unix

Unix
Which of command is used to copy a file?

cpio
tar
cp
copy
None of these

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Unix
Which command is used to remove a directory?

dldir
rd
rmdir
rdir

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Unix
The command used to remove the directory is;

rmdir
remove
None of these
rd
rdir

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Unix
Which of the following is invalid filename?

None of these
my .file
trial
TRY

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

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Unix
Which command is used to count just the number of characters in a file?

wc -w
wc -c
wc - 1
wc -r

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