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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!
参考答案
更多 “Which command enables a user to exit the vi editor, overwriting the existing file without prompting for confirmation?（）A、:wB、:qwC、:x!D、:we!” 相关考题
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单选题Which is not a valid way of backing up a control file？（）A
Backing up the control file to traceB
Copying the existing control file of the database to the backup location during a hot backup C
Copying the existing control file of the database to the backup location during a cold backupD
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单选题Which substitution variable would you use if you want to reuse the variable without prompting the user each time? （）A
B
ACCEPTC
PROMPTD
考题
单选题Which command enables a user to exit the vi editor, overwriting the existing file without prompting for confirmation?（）A
:wB
:qwC
:x!D
:we!
考题
单选题An administrator received a call from a user whose PC crashed while using vi to edit a file. The user wants the edited file back. Where should the administrator look for the file（）A
/tmpB
/var/preserveC
/var/tmp/$USERD
$HOME/.vi
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单选题Many people like the vi text editor but the default bash command line editor recognizes emacs keystrokes. What command entered into a bash initialization file will have bash recognize vi keystrokes after login？（）A
history-pviB
alias emacs=viC
HISTCMD=viD
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unset emacs
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As the root user from serverA run the command rhost serverBB
As the root user from serverA run the command rlogin serverBC
As the desired user from serverB run the command rhost serverAD
As the desired user from serverA run the command rlogin serverB
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单选题A user is unable to determine the default system text editor. How can the local administrator assist the user by identifying the default text editor for the system？（）A
Login as the user and run ’echo $ENV’.B
Login as root and run the ’env’ command.C
Login as root and ’cat /etc/environment’.D
Login as the user and run the ’env’ command.
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