Batch Script – Strings


In DOS, a string is an ordered collection of characters, such as "Hello, World!".

S.No Strings & Description
1 Create String

A string can be created in DOS in the following way.

2 Empty String

Empty String

3 String Interpolation

String interpolation is a way to construct a new String value from a mix of constants, variables, literals, and expressions by including their values inside a string literal.

4 String Concatenation

You can use the set operator to concatenate two strings or a string and a character, or two characters. Following is a simple example which shows how to use string concatenation.

5 String length

In DOS scripting, there is no length function defined for finding the length of a string. There are custom-defined functions which can be used for the same. Following is an example of a custom-defined function for seeing the length of a string.

6 toInt

A variable which has been set as string using the set variable can be converted to an integer using the /A switch which is using the set variable. The following example shows how this can be accomplished.

7 Align Right

This used to align text to the right, which is normally used to improve readability of number columns.

8 Left String

This is used to extract characters from the beginning of a string.

9 Mid String

This is used to extract a substring via the position of the characters in the string.

10 Remove

The string substitution feature can also be used to remove a substring from another string.

11 Remove Both Ends

This is used to remove the first and the last character of a string.

12 Remove All Spaces

This is used to remove all spaces in a string via substitution.

13 Replace a String

To replace a substring with another string use the string substitution feature.

14 Right String

This is used to extract characters from the end of a string.