What Are Batch Variables

Q

What What Are Batch Variables?

✍: FYIcenter.com

A

Batch variables are variables that create, store value to and retrieve value from in a batch file.

There are 3 ways a batch variable is defined:

1. Defined in the batch file using the "set" command. For example, "set java_home=\fyicenter\java" will define a new variable, "%java_home%".

2. Defined as system environment variables before the batch being executed. For example, "%path%" is a variable defined as a system environment variable.

3. Defined as batch execution context built-in variables. For example, "%random% is a batch built-in variable that represents a random integer.

⇒ What Are Batch Built-in Variables

⇐ "for" Loop Parameter Modifiers

⇑ Working with Parameters and Variables

⇑⇑ Windows Batch File Tutorials

2022-02-04, 1236👍, 0💬

Get Batch Parameter as File Path
How to get path name components of a batch file parameter? A file name is passed as the parameter. If a batch parameter represents a file name, you can use batch parameter modifiers on %1, %2 or others, to get its file patch components. Here is a batch file, Batch-Parameter-Modifiers.bat, that dumps... 2022-03-06, 3339👍, 1💬

💬 2022-03-06 Gg: Windows System and Application Information Center http://windows.fyicenter.com/ A large collection FAQs, tutorials and tips for ...

Batch Parameter Modifiers
What Are Batch Parameter Modifiers? Batch parameter modifiers are special functions that you can apply to batch parameters to modify their values. Here is a list batch parameter modifiers presented in formats for the 1 parameter. But you can use them on any of %0, %1, %2, ..., %9. %~1 - expands %1 r... 2022-04-13, 2466👍, 0💬

What Are Batch Built-in Variables
What What Are Batch Built-in Variables? Batch built-in variables are variables that defined by the batch execution context: %CD% - expands to the current directory string. %DATE% - expands to current date using same format as DATE command. %TIME% - expands to current time using same format as TIME c... 2021-10-10, 1997👍, 0💬

"for" Loop Parameter Modifiers
How to use "for" Loop Parameter Modifiers? Here is a batch file, For-Loop-Parameter.bat, that dumps the "for" loop parameter "%%p" with different modifiers: @echo off rem For-Loop-Parameter.bat - Show components of a for loop parameter for %%p in (%1) do ( echo ---------------- echo p = %%p echo ~p ... 2022-02-04, 1658👍, 0💬

"call" Command Help Reference
How to get "call" command help reference? You can run the "call /?" command to get "call" command help reference as shown below: C:\fyicenter>call /? Calls one batch program from another. CALL [drive:][path]filename [batch-parameters] batch-parameters Specifies any command-line information re... 2021-10-10, 1364👍, 0💬

What Is "for" Loop Parameter
What Is "for" Loop Parameter? A "for" loop parameter is a parameter defined in a "for" command to represent each item from a give list. A "for" loop parameter must be defined using the "%%name" format, where "name" can be any identifier string. Same parameter modifiers as batch parameters are also s... 2022-02-04, 1344👍, 0💬

Batch Command Help Reference Documents
Where to find introduction information on Batch Command Help Reference Documents? Here is a collection of tutorials compiled by FYIcenter.com team to provide introduction information on Batch Command Help Reference Documents. "call" Command Help Reference "copy" Command Help Reference "del" Command ... 2021-10-10, 1303👍, 0💬

What Are Batch Variables
What What Are Batch Variables? Batch variables are variables that create, store value to and retrieve value from in a batch file. There are 3 ways a batch variable is defined: 1. Defined in the batch file using the "set" command. For example, "set java_home=\fyicenter\java" will define a new variabl... 2022-02-04, 1237👍, 0💬

String Variable Match and Replace
How to perform sub-string match and replacement in a string batch variable? You can perform a sub-string match and replacement in a string batch variable using the following variable modifier: %variable:pattern=str% Wildcard character "*" can be used in "pattern" to match any number of any character... 2021-10-10, 1233👍, 0💬

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