在批处理文件中处理和拆分行 [英] Processing and splitting lines within batch files

问题描述

我必须处理一个包含一系列事件的文本文件

I have to process a text file which contains a bunch of events that look like

event_name1 : dd.mm.yyyy
event_name2 : dd.mm.yyyy
...
enemt_nameN : dd.mm.yyyy

我不知道手前有多少行

然后，我必须从每一行中提取一个日期，然后解析它以找到我要查找的日期.如果日期是必需的日期，我需要回显事件名称并继续搜索

then I have to extract a date from each line and parse it to find a date I am looking for. if the date is the one needed, I need to echo the event name and keep searching

我可以逐行解析文件，但是一行不会拆分.我到处都在使用与您可能在下面看到的相同的命令

I can parse the file line by line but then a line won't split. Everywhere I am using the same command as you might see below

    @echo off

    rem parsing today's date and saving variables i will need later
    echo %date%
    for /f "tokens=1-3 delims=-" %%a in ("%date%") do (
    set day = %%a
    set month = %%b
    set year = %%c
    )

    rem parsing the file with events
    FOR /F "tokens=*" %%i IN (Dates.txt) DO (

    rem trying to work with the current line
    for /f "tokens=1-3 delims= " %%j in (%%i) do (
    set /f name = %%a
    set /f inputdate = %%c

    rem doing stuff with the date in the line, i need to parse it by day, month and year
    for /f "tokens=1-3 delims=." %%k in (%inputdate%) do (
    if /I "%day%" EQU %%a echo %inputdate%
    )
    )
    )

我希望行能正常分割，但是，在尝试解析字符串的每个循环中，我都会不断收到诸如无法找到文件event_name"之类的错误消息

I expect the line to be split normally, however, I keep getting an error like "unable to find the file event_name" at each loop where I try to parse a string

cmd中的echo输出如下所示:

Echo output in the cmd looks like this, for example:

    (for /F "tokens=1-3 delims= " %j in (tomorrow : 12.06.2019) do (
    set /f name = %a
    set /f inputdate = %c
    for /F "tokens=1-3 delims=." %k in ((null)) do (if /I "" EQU %a echo  
    )
    ) )
    Unable to find the file tomorrow.

推荐答案

当我正确理解您要尝试执行的操作时，以下一线应该足够了:

when I understand correctly what you try to do, the following one-liner should be enough:

for /f "delims=:" %%a in ('type Dates.txt^|find "%date%"') do @echo %%a

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