用另一个字符串替换字符串

时间:2018-12-13 07:47:23

标签: replace cmd rename

我想将当前月份替换为另一个月份,而其他所有内容保持不变。 我有一百多个文件,我曾考虑过在CMD中使用重命名功能。

我之前的文件是apple Oct'18 banana.xlsx,我想更改为'apple Nov'18 banana.xlsx'

我最近得到的是使用Ren *oct*.xlsx "* Nov'18 banana*".xlsx 但是我得到的结果是apple Oct Nov banana.xlsx

但是,我无法完全替换Oct。

3 个答案:

答案 0 :(得分:2)

尝试ren *.xlsx ??????Nov??????????.*

*是通配符,用于匹配每个“ .xlsx”扩展名。

?是通配符,用于使原始文件中的每个字符保持不变。

答案 1 :(得分:2)

我认为无法通过单个ren命令行来完成任务。

您可以使用以下代码编写批处理文件,并将其命名为ren_date.bat

@echo off
setlocal EnableExtensions DisableDelayedExpansion

rem // Define constants here:
set "_ROOT=."   & rem // (root directory; `.` is current, `%~dp0.` is parent)
set "_FROM=%~1" & rem // (name portion to be replaced; `%~1` is 1st argument)
set "_TO=%~2"   & rem // (name portion to be inserted; `%~2` is 2st argument)

rem // Enumerate all matching files (note the SPACE behind the asterisk):
for /F "delims=| eol=|" %%J in ('dir /B /A:-D "%_ROOT%\* %_FROM%*.xlsx"') do (
    rem // Store current file name, initialise variable for new name:
    set "FILE=%%J" & set "NAME="
    rem // Toggle delayed expansion to avoid loss of exclamation marks:
    setlocal EnableDelayedExpansion
    rem /* Replace each SPACE in current file name by `" "` and enclose the
    rem    whole string in between `""`, so we get a list of quoted items,
    rem    which reflect all the SPACE-separated file name parts: */
    for %%I in ("!FILE: =" "!") do (
        endlocal
        rem // Store current file name part:
        set "PART=%%~I"
        setlocal EnableDelayedExpansion
        rem /* Assemble new name, performing the intended substitution of the
        rem    predefined sub-strings; the `for /F` loop is needed to transport
        rem    the resulting new file name over the `endlocal` barrier: */
        for /F "delims=| eol=|" %%K in ("!NAME! !PART:%_FROM%=%_TO%!") do (
            endlocal
            rem // Store the assembled name portion:
            set "NAME=%%K"
            setlocal EnableDelayedExpansion
        )
    )
    rem // Now rename file to the assembled new name:
    ren "!_ROOT!\!FILE!" "!NAME:~1!"
    endlocal
)

endlocal
exit /B

然后假设您位于包含要重命名的文件的目录中,请使用以下命令行在cmd中运行它:

ren_date.bat "Oct'18" "Nov'18"

请参考my answer to a former question of yours中的示例,这应该重命名文件:

and some pears Oct'18_xyz.xlsx
apples Oct'18.xlsx
bananas Oct'18.xlsx
more fruit Oct'18_xyz.xlsx
oranges Oct'18.xlsx
plus peaches Oct'18_xyz.xlsx
strawberries Oct'18 abcdef.xlsx

对这些人:

and some pears Nov'18_xyz.xlsx
apples Nov'18.xlsx
bananas Nov'18.xlsx
more fruit Nov'18_xyz.xlsx
oranges Nov'18.xlsx
plus peaches Nov'18_xyz.xlsx
strawberries Nov'18 abcdef.xlsx

(我相信,不可能直接在cmd中将上述代码写到命令行中,尤其是由于切换了延迟扩展以使代码安全。)

答案 2 :(得分:0)

由于批次仅知道变量类型字符串广告在日期时间计算上不好,
我建议为此使用PowerShell。

使用

  • [日期时间]类型和
  • .AddMonths()方法
  • 基于正则表达式的-match运算符

它甚至可以跨越年份界限:

## Q:\Test\2018\12\13\SO_53757192.ps1
$CI = [cultureinfo]::InvariantCulture
$dt = ' MMM\''yy '
Get-ChildItem '* ???''[0-9][0-9] *.xlsx' |
  Where-Object BaseName -match ' (Jan|Feb|Mar|Apr|Jun|Jul|Aug|Sep|Oct|Nov|Dec)''(\d{2}) ' |
    Rename-Item -NewName {$_.Name -replace $Matches[0],
      [datetime]::ParseExact($matches[0],$dt,$CI).AddMonths(1).ToString($dt)} # -WhatIf

您可以从文件中批量调用它

powershell -NoP -Ex bypass -File ".\SO_53757192.ps1"

或将其塞入一行

powershell -NoP -C "$CI=[cultureinfo]::InvariantCulture;$dt=' MMM\''yy ';Get-ChildItem '* ???''[0-9][0-9] *.xlsx'|Where-Object BaseName -match ' (Jan|Feb|Mar|Apr|Jun|Jul|Aug|Sep|Oct|Nov|Dec)''(\d{2}) '|Rename-Item -NewName {$_.Name -replace $Matches[0],[datetime]::ParseExact($matches[0],$dt,$CI).AddMonths(1).ToString($dt)}"
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