DOS basics, DOS basics

One. Introduction to Simple Batch Internal Commands.

command to turn on echo or turn off request echo functionality, or to display a message. If there are no parameters, the echo command will display the current echo settings.

syntax echo message].

sample：@echo off / echo hello world

In practice, we will combine this command with the redirect symbol (also known as the pipe symbol, usually used> to implement the input of some commands into a file of a specific format. This will be reflected in future examples.

2.@ command.

It means that the command behind @ is not displayed, and during the invasion process (such as using batch processing to format the enemy's hard disk), you will naturally not be able to let the other party see the command you use.

sample：@echo off

echo now initializing the program,please wait a minite...

format x: q u autoset (format command can not use the y parameter, the good news is that Microsoft left an autoset parameter for us, the effect is the same as y.) )

The command specifies jumping to the tag, and when the tag is found, the program processes the command that starts on the next line.

Syntax: goto label (label is a parameter that specifies the row in the batch program to be turned.) ）

sample：

if =={} goto noparms

if =={} goto noparms (If you don't understand if, %1, %2 here, skip over first, and there will be a detailed explanation later.) ）

rem check parameters if null show usage

noparms

echo usage: serverip portnumber

goto end

The name of the tag can be arbitrarily named, but it is better to have a meaningful letter, preceding the letter: to indicate that the letter is a tag, and the goto command is based on this: to find the next step to jump there.

It's better to have some explanations so that others will seem to understand your intentions.

The main thing is to memorize commands.

Commands like some format, dir, fdisk, etc., go for some hacks**. A lot..

But it's basically useless now.,If you want to learn hacking.,It's recommended to use the Linnx system.。。

This system is relatively open.,It's more supportive of the network.,The disadvantage is that many games can't be played.。。

Hehe, also memorize a lot of commands.

Go and see for yourself the hackers**. There are a lot of good ones in the country.

Like what the Chinese Red Guest Alliance, what 7788, a lot.

I was fooled once.

First of all, when you are a master of the white way, you can find the loopholes that can be started.

Install the MAXDOS software or DOS Toolbox in your computer, restart the computer, go to the boot menu, select DOS Toolbox, and you're done.

If you don't have these two software, you just find a Windows 98 installation disk, boot it with a CD-ROM drive, and you're good to go!

Use the command format

Put it into the system disk, reboot and press del, enter BOIS, and set the optical drive as the first boot item.

Format of the dir command:

dir[d:][path][name][[/a][:attrib]][/o:[sorted][/s][/b][/l][/c[h]

1)dira:attrib

By default, all files (system files. Implied files).

attrib[:]h -h] shows only hidden or non-hidden files.

r -r] to show only read-only files or non-read-only files.

s -s] shows only system files or non-system files.

a -a] displays only files to be archived or non-archived files.

2) o[:]sorted: By default, the subdirectories are displayed in full alphabetical order, before the file.

o[n -n]: Reverse display alphabetically or by file name [e -e]: Reverse display alphabetically by extension.

d -d]: Displays in reverse chronological order.

s -s]: Displays by size from largest to smallest or in reverse.

g -g]: By subdirectory before file or file before subdirectory (3) s

Parameter: List all files in the current directory and its subdirectories: dir

s/a/o:n

c:\\prn

Print out all subdirectories and files on the C drive by affiliation and alphabetical order according to the subdirectories and files.

4) b-Parameter: Only the file name and extension will be displayed.

5) l Parameter: Train all files or subdirectories with lowercase letters: dir

Column A for all files (including implicit and system files) in the current directory dir ah

Column Suppressed Files (contains subdirectories (Suppressed).)

dir/a-h

dir/as

column system file.

dir/a-s

dir/ad

Column subdirectories. dir/a-d

dir o in alphabetical order.

dir b only shows the file name and extension.

> is called the Command Prompt, which is what the system displays telling you to enter a command after it.

If it doesn't look good, you can change it, and type prompt ?Take a look.

Path, to use an analogy, if an ant wants to find a leaf, it tells you how to climb from tree to tree. And c:,d:,etc.,It's called the root directory.。

C: Fox User The fox, and user can be understood as the fork of the tree that the ant has to pass through.

Why sometimes it is > sometimes it is: >

Quite simply, he made a typo.

Nothing, just under a drive letter.

This one is very good.

There is an eMule on it! LZ find it yourself!