• for %var in (set) do commond

for %one in (1,2,3,4,5) do echo
-->1
-->2
-->3
-->4
-->5

for /r . %i in (.) do @echo %i >> t.txt && t.txt
##这一步生成目录文件名到文件t.txt
for /f "skip=1 delims=." %i in (t.txt) do @echo "%i" >> tar.txt
##处理上一步生成的t.txt，从中读取内容并略去第一行，将每一行加上""后输出至tar.txt。加引号处理是因为7z命令行的要求
del t.txt
for /f "delims=" %i in (tar.txt) do 7z a %i %i
##利用处理后生产的tar.txt，再利用7z命令，将文件压缩。生成的是.7z，放在了各个文件夹中

• ren/rename TargetFileName Newname

• 7z e .\ -o.\ -pXXXXX -ssp

​ 直接解压压缩文件中的目录，不考虑其中的组织结构而直接使其平铺解压 注意:不带-符号的需要空一格后输入参数；带-负号的不用加空格，直接写出参数

​ 解压并保持源文件中的目录结构

​ 设定解压后文件的存放地址为当前目录

​ 设置解压密码为XXXXX，-p后不用带空格

​ 使解压后的文件不带空文件夹

​ 将当前目录下的文件设置为一个7z压缩文件

​ 压缩完毕后删除文件

del *.txt表示删除后缀为 .txt的目录下文件

将 X:\Microsoft VS Code\bin添加到系统变量 path中

在cmd中输入 code [fileName]

cd.>fileName.fileType

echo hi there > a.txt

上面的命令总共完成了两步操作

1. 在命令行显示hi there
1. 将命令行输出的内容改变输出地点，改至./a.txt中。既先创建./a.txt，再将命令行输出放入其中。

如果只是想将内容添加至文件，可以使用下列命令

echo hi there again! >> a.txt

既 >>会将输出方法改变为追加，而 >则为覆盖。

||前后都是命令，

• 当 ||前的命令出错后才会执行 ||后的命令
• 若 ||前的命令正确执行则不会执行 ||后的命令

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Directory\Background\shell\wt]
@="cmd here"

[HKEY_CLASSES_ROOT\Directory\Background\shell\wt\command]
@="C:\\Windows\\System32\\cmd.exe s k pushd %V"

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Discardable\PostSetup\ShellNew

@ECHO OFF
REM.-- Prepare the Command Processor
SETLOCAL ENABLEEXTENSIONS

REM --
REM -- Copyright note
REM -- This script is provided as is.  No waranty is made, whatso ever.

REM -- You may use and modify the script as you like, but keep the version history with
REM -- recognition to http://www.dostips.com in it.

REM --

REM Version History:
REM         XX.XXX      YYYYMMDD Author Description
SET "version=01.000"  &:20051201 p.h.   initial version, origin http://www.dostips.com
SET "version=01.001"  &:20060122 p.h.   Fix missing exclamation marks in documentation (http://www.dostips.com)
SET "version=01.002"  &:20060218 p.h.   replaced TEXTAREA with PRE XMP (http://www.dostips.com)
SET "version=01.003"  &:20060218 p.h.   php embedding (http://www.dostips.com)
SET "version=01.004"  &:20060723 p.h.   fix page links for FireFox (http://www.dostips.com)
SET "version=01.005"  &:20061015 p.h.   invoke HELP via '"call" help', allows overriding help command with a help.bat file (http://www.dostips.com)
SET "version=01.006"  &:20061015 p.h.   cleanup progress indicator (http://www.dostips.com)
SET "version=01.007"  &:20080316 p.h.   use codepage 1252 to support european users (http://www.dostips.com)
SET "version=02.000"  &:20080316 p.h.   use FOR command to generate HTML, avoids most escape characters (http://www.dostips.com)
SET "version=02.000"  &:20100201 p.h.   now using css and xhtml
REM !! For a new version entry, copy the last entry down and modify Date, Author and Description
SET "version=%version: =%"

for /f "delims=: tokens=2" %%a in ('chcp') do set "restore_codepage=%%a"
chcp 1252>NUL

set "z=%~dpn0.htm"

rem echo.^> >"%z%"
echo.^> >"%z%"

set "title=DOS Command Index"
for /f "tokens=*" %%a in ('ver') do set "winver=%%a"

echo.Creating the header ...

for %%A in (
            ""
            ""
            ""
            ""
            ""
            ""
            ""
            ""
            "
%title%
"
            "
"
            ""
            "    "
            "    "
            "    "
            "
Windows Version
:
%winver%
Document Source
:
"
            "        http://www.dostips.com
"
            "        http://www.dostips.com/%~nx0.php"
            "        
Created by
:
"
            "        %~nx0
Source Code below
"
            "
"
            "

"
            ""
            ) do echo.%%~A>>"%z%"

echo.Creating the index ...

set /a cnt=0
for /f "tokens=1,*" %%a in ('"help|findstr /v /b /c:" " /c:"For more""') do (
    for %%A in (
            "    "
            ) do echo.%%~A>>"%z%"
    set /a cnt+=1
)
for %%A in (
            "
%%a
%%b
"
            "

"
            ) do echo.%%~A>>"%z%"

echo.Extracting HELP text ...

call:initProgress cnt
for /f %%a in ('"help|findstr /v /b /c:" " /c:"For more""') do (
    echo.Processing %%a
    for %%A in (
            "
TOP
"
            "
%%a
"
            "
"
            ) do echo.%%~A>>"%z%"
    call help %%a >>"%z%" 2>&1
    echo  ( >>"%z%"
    for %%A in (
            "

"
            ) do echo.%%~A>>"%z%"
    call:tickProgress
)
echo.Injecting source script ...
for %%A in (
            ""
            "
"
            "
"

            "
TOP
"
            "
DOS Batch Script Source that created this Document
"
            "This %title% has been created automatically by the following DOS batch script:"
            "
"
            "
"
            "

"
            ) do echo.%%~A>>"%z%"
type "%~f0" >>"%z%"

echo.Creating the footer ...

echo  ( >>"%z%"
for %%A in (
            "

"
            ""
            ""
            ""
            ""
            ) do echo.%%~A>>"%z%"
chcp %restore_codepage%>NUL
explorer "%z%"
:SKIP
REM.-- End of application
FOR /l %%a in (5,-1,1) do (TITLE %title% -- closing in %%as&ping -n 2 -w 1 127.0.0.1>NUL)
TITLE Press any key to close the application&ECHO.&GOTO:EOF
::-----------------------------------------------------------
::helper functions follow below here
::-----------------------------------------------------------
:initProgress -- initialize an internal progress counter and display the progress in percent
::            -- %~1: in  - progress counter maximum, equal to 100 percent
::            -- %~2: in  - title string formatter, default is '[P] completed.'
set /a "ProgressCnt=-1"
set /a "ProgressMax=%~1"
set "ProgressFormat=%~2"
if "%ProgressFormat%"=="" set "ProgressFormat=[PPPP]"
set "ProgressFormat=%ProgressFormat:[PPPP]=[P] completed.%"
call :tickProgress
GOTO:EOF
:tickProgress -- display the next progress tick
set /a "ProgressCnt+=1"
SETLOCAL
set /a "per=100*ProgressCnt/ProgressMax"
set "per=%per%%%"
call title %%ProgressFormat:[P]=%per%%%
GOTO:EOF


Original: https://www.cnblogs.com/dysonxxxxx/p/16582115.html
Author: dysonkkk
Title: cmd学习笔记