why doesn't this setting and displaying environment variable work?

[taripo]

been a while since I used batch files, I tend to use them very rarely and don't tend to remember some of the idiosyncracies and I try some tests to figure them out but this simple one has me stuck.

why doesn't this setting and displaying environment variable work?

Code: Select all

C:\blah>type testenvv.bat

set %%ppp%%="tgt"
set %ppp%="tgt"
echo %%ppp%%
echo %ppp%

C:\blah>

Code: Select all

C:\blah>testenvv.bat

C:\blah>set %ppp%="tgt"

C:\blah>set ="tgt"
The syntax of the command is incorrect.

C:\blah>echo %ppp%
%ppp%

C:\blah>echo
ECHO is on.

Thanks

[jfl]

The correct syntax is:

Code: Select all

set ppp="tgt"
echo %ppp%

[taripo]

doh!

Thanks!