How to concatenate strings in windows batch file for loop?

Question

I'm familiar with Unix shell scripting, but new to windows scripting.

I have a list of strings containing str1, str2, str3...str10. I want to do like this:

for string in string_list do   var = string+"xyz"   svn co var end 

I do found some thread describing how to concatenate string in batch file. But it somehow doesn't work in for loop. So I'm still confusing about the batch syntax.

Answer 1

Try this, with strings:

set "var=string1string2string3" 

and with string variables:

set "var=%string1%%string2%%string3%" 

Answer 2

In batch you could do it like this:

@echo off  setlocal EnableDelayedExpansion  set "string_list=str1 str2 str3 ... str10"  for %%s in (%string_list%) do (   set "var=%%sxyz"   svn co "!var!" ) 

If you don't need the variable !var! elsewhere in the loop, you could simplify that to

@echo off  setlocal  set "string_list=str1 str2 str3 ... str10"  for %%s in (%string_list%) do svn co "%%sxyz" 

However, like C.B. I'd prefer PowerShell if at all possible:

$string_list = 'str1', 'str2', 'str3', ... 'str10'  $string_list | ForEach-Object {   $var = "${_}xyz"   # alternatively: $var = $_ + 'xyz'   svn co $var } 

Again, this could be simplified if you don't need $var elsewhere in the loop:

$string_list = 'str1', 'str2', 'str3', ... 'str10' $string_list | ForEach-Object { svn co "${_}xyz" }