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单选题
Which command enables a user to exit the vi editor, overwriting the existing file without prompting for confirmation?（）
A
:w
B
:qw
C
:x!
D
:we!
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单选题Which command enables a user to exit the vi editor, overwriting the existing file without prompting for confirmation?（）A
:wB
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Modify /etc/environment and add EDITOR=/usr/bin/edit export EDITORD
Modify /etc/security/defaults and change the EDITOR value to /usr/bin/edit
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Modify /etc/environment and add EDITOR=/usr/bin/edit export EDITORD
Modify /etc/security/defaults and change the EDITOR value to /usr/bin/edit
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