3 pagesPart 1 dos OverviewChapter 2 dos OverviewBefore reading this book, you must first understand what DOS is. This chapter first briefly introduces the DOS Operation SystemAnd briefly introduces the operating system history to explain the
One, what is deferred environment variable extension?
Delay variable Full name "Delay environment variable extension", to understand this thing, we have to understand what is called variable expansion!When we explain our command, CMD will first
Interactive interface Design
Nothing to say, look at the Master Design Menu interface bar:
@echo off
CLS
title Ultimate Multipurpose Repair
: Menu
cls
color 0A
echo.
echo ==============================
echo Please select the
For help documentExecutes a specific command on each file in a set of files.
For%variable in (set) do command [Command-parameters]
%variable specifies a single letter replaceable parameter.
(set) to specify one or a set of files. You can use
The format of the DIR command:
dir [D:][path][name][[/a][:attrib]][/o:[sorted][/s][/b][/l][/c[h]
(1) Dir/a:attrib default contains all files (System files. hidden files)
Attrib[:][h/-h] Displays only hidden or not suppressed files.
[R/-r]
The for command is a command line or batch operation that iterates through a series of objects, running in a command row or in batches, combining some of the programs in Windows Management with a powerful, flexible application that is impressive.
I don't know how many people think that DOS does not support USB devices. Since the USB device standard was developed after Windows 95, the former Microsoft boss of DOS had decided to give up its MS-DOS. As a result, when you want to operate a USB
NET use $ ">\\ip\ipc$Content$nbsp;" "/USER:" "establishing an IPC NULL linkNET use $ ">\\ip\ipc$Content$nbsp;" Password "/user:" username "establish IPC non-null linkNET use H: $ ">\\ip\c$Content$nbsp;" Password "/user:" User name "directly after
There are three executable files in DOS, respectively, exe,com and bat. Among them, exe and COM file are binary form, only bat file is text form, can read directly. As a result, the bat file is much simpler than the binary executable file. These
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