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Windows_command

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To schedule automatic file checking on the D volume, but not the C or E volumes, type the following commands in order:
chkntfs /d
chkntfs /x c: d: e:
chkntfs /c d:
Important
The /c command-line option is accumulative. If you type /c more than once, each entry remains. To ensure that only a particular volume is checked, reset the defaults to clear all previous commands, exclude all volumes from being checked, and then schedule automatic file checking on the desired volume.
choice
Prompts the user to select one item from a list of single-character choices in a batch program, and then returns the index of the selected choice. If used without parameters, choice displays the default choices Y and N.
Syntax
choice [/c [<choice1><choice2><…>]] [/n] [/cs] [/t <timeout> /d <choice>] [/m <text>]
Parameters
Parameter
Description
/c <choice1><choice2><…>
Specifies the list of choices to be created. Valid choices include a-z, A-Z, 0-9, and extended ASCII characters (128-254). The default list is YN, which is displayed as [Y,N]?.
/n
Hides the list of choices, although the choices are still enabled and the message text (if specified by /m) is still displayed.
/cs
Specifies that the choices are case-sensitive. By default, the choices are not case-sensitive.
/t <timeout>
Specifies the number of seconds to pause before using the default choice specified by /d. Acceptable values are from 0 to 9999. If /t is set to 0, choice does not pause before returning the default choice.
/d <choice>
Specifies the default choice to use after waiting the number of seconds specified by /t. The default choice must be in the list of choices specified by /c.
/m <text>
Specifies a message to display before the list of choices. If /m is not specified, only the choice prompt is displayed.
/?
Displays help at the command prompt.
<choice1><choice2><…>
[Y,N]?
<timeout>
<choice>
<text>
Remarks
The ERRORLEVEL environment variable is set to the index of the key that the user selects from the list of choices. The first choice in the list returns a value of 1, the second a value of 2, and so on. If the user presses a key that is not a valid choice, choice sounds a warning beep.
1
2
If choice detects an error condition, it returns an ERRORLEVEL value of 255. If the user presses CTRL+BREAK or CTRL+C, choice returns an ERRORLEVEL value of 0.
255
0
Note
When you use ERRORLEVEL values in a batch program, you must list them in decreasing order.
Examples
To present the choices Y, N, and C, type the following line in a batch file:
choice /c ync
The following prompt appears when the batch file runs the choice command:
[Y,N,C]?
To hide the choices Y, N, and C, but display the text Yes, No, or Continue, type the following line in a batch file:
choice /c ync /n /m "Yes, No, or Continue?"
Note
If you use the /n parameter, but do not use /m, the user is not prompted when choice is waiting for input.
To show both the text and the options used in the previous examples, type the following line in a batch file:
choice /c ync /m "Yes, No, or Continue"
To set a time limit of five seconds and specify N as the default value, type the following line in a batch file:
choice /c ync /t 5 /d n
Note
In this example, if the user doesn't press a key within five seconds, choice selects N by default and returns an error value of 2. Otherwise, choice returns the value corresponding to the user's choice.
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cipher
Displays or alters the encryption of directories and files on NTFS volumes. If used without parameters, cipher displays the encryption state of the current directory and any files it contains.
Syntax
cipher [/e | /d | /c] [/s:<directory>] [/b] [/h] [pathname [...]]
cipher /k
cipher /r:<filename> [/smartcard]
cipher /u [/n]
cipher /w:<directory>
cipher /x[:efsfile] [filename]
cipher /y
cipher /adduser [/certhash:<hash> | /certfile:<filename>] [/s:directory] [/b] [/h] [pathname [...]]
cipher /removeuser /certhash:<hash> [/s:<directory>] [/b] [/h] [<pathname> [...]]
cipher /rekey [pathname [...]]
Parameters
Parameters