CMD est basé sur les lignes. Il ne lit et n’exécute qu’une ligne à la fois. Lorsque vous tapez et que vous n'avez pas terminé une ligne, il vous invite à le faire More?
.
Votre particularité est qu’il n’ya pas de fin de ligne et attend donc de voir ce qui vient après le %
panneau.
Il est plus facile de voir en utilisant des crochets
Essayer dir
ensuite
(dir
echo %time%
(type c:\windows\win.ini
)
)
Ce n'est que lorsque la ligne est complète (parenthèses correspondantes) qu'elle est lue et exécutée.
Voici une liste de ponctuation.
& separates commands on a line.
&& executes this command only if previous command's errorlevel is 0.
|| (not used above) executes this command only if previous command's errorlevel is NOT 0
> output to a file
>> append output to a file
< input from a file
| output of one command into the input of another command
^ escapes any of the above, including itself, if needed to be passed to a program
" parameters with spaces must be enclosed in quotes
+ used with copy to concatenate files. E.G. copy file1+file2 newfile
, used with copy to indicate missing parameters. This updates the files modified date. E.G. copy /b file1,,
%variablename% a inbuilt or user set environmental variable
!variablename! a user set environmental variable expanded at execution time, turned with SelLocal EnableDelayedExpansion command
%<number> (%1) the nth command line parameter passed to a batch file. %0 is the batch file's name.
%* (%*) the entire command line.
%<a letter> or %%<a letter> (%A or %%A) the variable in a for loop. Single % sign at command prompt and double % sign in a batch file.
\\ (\\servername\sharename\folder\file.ext) access files and folders via UNC naming.
: (win.ini:streamname) accesses an alternative steam. Also separates drive from rest of path.
. (win.ini) the LAST dot in a file path separates the name from extension
. (dir .\*.txt) the current directory
.. (cd ..) the parent directory
\\?\ (\\?\c:\windows\win.ini) When a file path is prefixed with \\?\ filename checks are turned off.
< > : " / \ | Reserved characters. May not be used in filenames.
Reserved names. These refer to devices eg,
copy con <filename>
which copies a file to the console window.
CON, PRN, AUX, NUL, COM1, COM2, COM3, COM4,
COM5, COM6, COM7, COM8, COM9, LPT1, LPT2,
LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, and LPT9
Maximum path length 260 characters
Maximum path length (\\?\) 32,767 characters (approx - some rare characters use 2 characters of storage)
Maximum filename length 255 characters
.
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