这是aflat的anwer的扩展。
1)Microsoft支持提供了一个解释和简单的touch.bat脚本。 2)我的自定义touch.cmd,通过包含“touch /?”扩展MS脚本帮助文本。 3)我的自定义midastouch.cmd,它提供了几个选项,包括递归操作和日期操作。
由于aflat写道,简单的答案是:
copy /b FILENAME +,,
正如你所预料的,文件名可以包括相对或绝对路径,并像* .TXT通配符。
1.微软1支持:
以下MS-DOS命令更新一个 文件命名为“榜样”的日期和时间标记不改变文件的内容。此 与XENIX和某些第三方 MS-DOS工具包中的TOUCH实用程序类似。
COPY /B EXAMPLE +,,
COPY命令可以连接一个文件上时在形式使用 现有文件:
COPY FILE1+FILE2
在这个例子中,FILE2中的内容被附加到FILE1,保持FILE2不变。在此模式下复制时,COPY命令 切换到ASCII模式,其中^ Z(0x01A)文件结束标记为 。
因此,与上述命令时,/ B强制COPY命令到 二进制模式,文件名是要更新的文件时,+(加号) 指示文件是要追加,并且,,(逗号)是 其余参数的占位符(其中不包括在 这个例子中)。由于未指定要附加的文件,因此COPY命令将不添加任何内容,只会更新该文件的时间和日期戳记 。
下面的批处理文件,TOUCH.BAT,可用于自动执行 过程:“触摸”
@echo off
if %1.==. goto end
if not exist %1 goto end
copy /b %1 +,, > nul
echo %1 touched!
:end
这个批处理文件需要一个参数,所述文件被如果未提供 参数,则第2行将使批处理文件退出 而不执行任何操作。如果指定的文件不存在,第3行 也会导致批处理文件也退出。
2. Touch.cmd
@echo off
:: -----------------------------------------
:: Process input parameter
:: -----------------------------------------
: Help requestes?
if "%1%"=="/?" goto help
if "%1%"=="?" goto help
if "%1%"=="" goto help
:: -----------------------------------------
:: Update Modified Date property to now
:: -----------------------------------------
if not exist %1% goto end
copy /b %1% +,, > nul
echo %1 touched!
goto end
:help
@echo off
echo :: --------------------------------------------------------------
echo :: Touch.cmd Help
echo :: --------------------------------------------------------------
echo.
echo Touch.cmd is batch script to update the Modified Date property
echo of teh specified file to the current
echo date and time.
echo.
echo Syntax: touch filename
echo where,
echo filename is the name of the name of the file to "touch."
echo filename may include a relative o full path.
echo filename may include wild cards like *.txt.
echo.
:end
3. MidasTouch.cmd
@echo off
:: -----------------------------------------
:: Find files older than specified date
:: -----------------------------------------
:: -----------------------------------------
:: Default Values
:: -----------------------------------------
set "default_path=%cd%"
set "default_err_log=%cd%\midastouch_err.log"
set /a default_date=-365
set "open_log=False"
set "recurse=True"
:: -----------------------------------------
:: Process input parameters
:: -----------------------------------------
: Help requestes?
if "%1%"=="/?" goto help
if "%1%"=="?" goto help
if /I "%1%"=="help" goto help
set "dir_in="
set "err_log="
set "dd="
:: Read in commandline arguements.
echo Arguements:
:arguement_loop
if "%1%"=="/p" (
echo Path: %2%
set dir_in=%2%
shift
goto loop_bottom)
if "%1%"=="/l" (
echo Error log: %2%
set err_log=%2%
shift
goto loop_bottom)
if "%1%"=="/-l" (
echo No error log. Output to console.
set err_log=CON
shift
goto loop_bottom)
if "%1%"=="/d" (
echo Date: %2%
set /a dd=%2%
shift
goto loop_bottom)
if "%1%"=="/o" (
echo Open log: True
set "open_log=True"
goto loop_bottom)
if "%1%"=="/-o" (
echo Open log: False
set "open_log=False"
goto loop_bottom)
if "%1%"=="/s" (
echo Recursive: True
set "recurse=True"
goto loop_bottom)
if "%1%"=="/-s" (
echo Recursive: False
set "recurse=False"
goto loop_bottom)
if not "%1%"=="" (
if "%dir_in%"=="" (
echo Path: %1%
set dir_in=%1%
goto loop_bottom)
if "%err_log%"=="" (
echo Error log: %1%
set err_log=%1%
goto loop_bottom)
if "%dd%"=="" (
echo Date: %1%
set /a dd=%1%
goto loop_bottom)
)
:loop_bottom
shift
if not "%1%"=="" goto arguement_loop
if "%dir_in%"=="" (
set dir_in=%default_path%)
if "%err_log%"=="" (
set err_log=%default_err_log%)
if "%dd%"=="" (
set /a dd=%default_date%)
:: -----------------------------------------
:: Execution
:: -----------------------------------------
:: Write header
set "header=Touch_dir.cmd Error Log"
if exist %err_log% (
del /q %err_log%)
@echo %header% >%err_log%
set cmd_str="cmd /c copy /b @path +,,"
:: Update Modified Date property to now
if /I "%recurse%"=="True" (
set cmd_str=forfiles /s /p %dir_in% /d %dd% /c %cmd_str%
) else (
set cmd_str=forfiles /p %dir_in% /d %dd% /c %cmd_str%
)
echo Command: %cmd_str% >>%err_log%
echo Errors: >>%err_log%
echo. >>%err_log%
echo Executing command: %cmd_str%
@echo Updating Modified Date of files older than date: %dd%.
@echo This may take a while. Please be patient...
@echo.
echo.
set cmd_str=%cmd_str% || @echo Failed to update: @path >>%err_log%"
%cmd_str%
:: Results
@echo Error log: %err_log%
if "%open_log%"=="True" (start %err_log%)
goto end
:help
@echo off
echo :: --------------------------------------------------------------
echo :: Touch_dir.cmd Help
echo :: --------------------------------------------------------------
echo.
echo Touch.cmd is batch script to recursively "touch" all files in a
echo folder to update their Modified Date property to the current
echo date and time.
echo.
echo Syntax: touch_dir /d directory /l err_log /m months
echo where,
echo /p path Path containing files with Modified
echo Date values to update to now.
echo (default = current directory).
echo /s (or /-s) Recursive (or not recursive) search
echo (default recursive is %recurse%).
echo /l err_log Error log: list of files not updated
echo (default err_log: midastouch_err.log).
echo /o (or /-o) Open (or do not open) error log after
echo execution (default open_log: %open_log%).
echo /d date Selects files with a last modified date greater
echo than or equal to (+), or less than or equal to
echo (-), the specified date using the
echo "MM/dd/yyyy" format; or selects files with a
echo last modified date greater than or equal to (+)
echo the current date plus "dd" days, or less than or
echo equal to (-) the current date minus "dd" days. A
echo valid "dd" number of days can be any number in
echo the range of 0 - 32768.
echo "+" is taken as default sign if not specified.
echo (default date is: %default_date%).
echo.
:end
的[Windows版本Unix的触摸命令的](HTTP
可能重复:// stackoverflow.com/questions/51435/windows-version-of-the-unix-touch-command) – Helen