Knowledge Walls
John Peter
Pune, Maharashtra, India
Commands
Date II Find Prompt Set Start Cls Tree
Commands [cont'd]
Powershell Type Taskkill
String manipulation
Substring Find String Find & Replace String Concat Split string by delimiter
Things to Know
Declaring variable Inline multiple statements @echo off File content to variable Present working directory Add comments and multiline comments in MS DOS Directory is Exist
Things to Know [cont'd]
Prompt value
Decision making
For Loop IF statement Goto If Else
File System
MKDir Echo. > filename.txt For each.. in RmDir
Arithmetic Operators
Arithmetic Operators + (Plus) Operator - (Minus) Operator * (Multiply) Operator / (Division) Operator %% (Mod) Operator
Relational Operators
Equals Relational operators Not equals Greater than Greater than or equals to Less than or equals to Less than
Logical Operators
AND Operator OR Operator NOT Operator
Examples
How to create template file by batch file MS DOS Commands How to add ms-dos parameters/arguments with spaces Percentage in echo ms dos escape characters How to append string in a file using MS DOS Commands How to escape characters in string using MS DOS Commands
OR Operator in Logical Operators of MS-DOS Commands
10794 Views
Hints 
OR operator Return true when atleast one of the condition is true.

Logic:
Condition 1 Condition 2 Result
true true true
false true true
true false true
false false false

Example
@echo off

SET age=22

IF %age%==18 goto :a10
IF %age%==24 goto :a10
GOTO :a11

:a10
ECHO "Age is suitable!"
GOTO :a12

:a11
ECHO "Age is not suitable"

:a12
SET /p exit=Press enter to exit
Output 
Previous Topics
Previous lessons of current book.
Logical Operators of MS-DOS Commands
Relational Operators of MS-DOS Commands
Relational Operators of MS-DOS Commands
Relational Operators of MS-DOS Commands
Relational Operators of MS-DOS Commands
Best Lessons of "MS-DOS Commands"
Top lessons which are viewed more times.
String manipulation of MS-DOS Commands
Arithmetic Operators of MS-DOS Commands
Arithmetic Operators of MS-DOS Commands
String manipulation of MS-DOS Commands
Relational Operators of MS-DOS Commands
String manipulation of MS-DOS Commands
Examples of MS-DOS Commands
String manipulation of MS-DOS Commands
Things to Know of MS-DOS Commands
Things to Know of MS-DOS Commands
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