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Unix

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

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

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Unix
Which command will be used with vi editor to replace text from cursor to right?

C
c
r
R

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Unix
Which of the following commands is used to copy a file wb from the programs directory into a file called wbx in the misc directory?

copy programs/wb misc/wbx
cp programs/wb misc/wbx
copy a:programs/wb b:misc/wbx
tar programs/wb misc/wbx

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Unix
Which of the following special shell variables is used to process number of the last background job?

$*
$0
$!
$#

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Unix
Which of the following commands is used to absolutely assign all permissions to the owner, read and write permissions to the group and only executable permission to the others of the file note?

chmod 761 note
chmod 671 note
chmod 4=rwx, g=rw note
chmod 167 note

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Unix
Which set option is used with vi editor to display line numbers on screen?

nm
nu
ic
li

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