How to convert the value of %USERNAME% to lowercase within a Windows batch script?

Question

I\'m automating some source control software functionality using a dot bat script but given that our svn repos are hosted in a *NIX box, I\'m facing the eternal case problem

Answer 1

When a scripting language is installed then that can be used with a "FOR" to set a variable.

Any scripting language can be used if it can convert a string to lowercase and output the result.

An example using Perl 5 :

@FOR /F %%s IN ('perl -e "print lc(pop)" %USERNAME%') DO @set USERNAME=%%s

An example using PowerShell :

@FOR /F %%s IN ('powershell -command "(get-item env:'USERNAME').Value.ToLower()"') DO @set USERNAME=%%s

These days, odds are that PowerShell is already installed by default.