Str Repeat Implementation using Windows Batch Script

The str_repeat function is a commonly used function that allows you to print/generate a string that is filled with a number of common patterns. For example:

str_repeat(3, “Hello “) gives “Hello Hello Hello ”

The following is a quick Windows Batch Script that does the same thing:

@echo off
setlocal enableDelayedExpansion

if [%1]==[] goto help
if [%2]==[] goto help

set s=
for /L %%v in (1,1,%1) do (
        set s=!s!%~2
)
echo !s!

goto :eof

:help
        echo Usage %0 count pattern

For example:

$ str_repeat.cmd 3 *
***
$ str_repeat.cmd 5 "ab"
ababababab

$ str_repeat.cmd 2 "Hello World"
Hello WorldHello World

We enable the “enableDelayedExpansion” to allow variable substitution at runtime. And we use the for /L to loop for the given number of times.

–EOF (The Ultimate Computing & Technology Blog) —