34
edits
Changes
Use of User Shell Folders variables
* The Windows shell and some command-line programs don't like spaces appearing in file or directory names. For example when using such wildcards as %PROGRAMFILES% in %PROGRAMFILES%\some-directory\some-program.exe where we don't know whether or not %PROGRAMFILES% contains a space, use "%PROGRAMFILES%\some-directory\some-program.exe"
* It is possible to load special variables from registry "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders":
** It needs [http://gnuwin32.sourceforge.net/packages/gawk.htm gawk] (in %SOFTWARE%\bin for the following code)
** The front and trailing whitespaces are removed ( gsub(/^[ \t]+/, "",$X) and gsub(/[ \t]+$/, "", $X) )
** The spaces in variable names are removed: "Local Settings" => "LocalSettings"
<source lang="dos">
@echo off
SET QUERY_HIVE=HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
SET WPKGBIN=%SOFTWARE%\bin
for /F "usebackq skip=2 delims==" %%G IN (`reg query "%QUERY_HIVE%"`) DO (
REM Possible use of tokens=1,2 to avoid 2 for loops ?
REM echo %%G | %WPKGBIN%\gawk -F"REG_EXPAND_SZ" "{gsub(/[ \t]+/, \"\", $1);gsub(/[ \t]+$/,\"\",$1);gsub(/^[ \t]+/, \"\", $2);gsub(/[ \t]+$/,\"\",$2);print($1\",\"$2)}"
for /F "delims=" %%I IN ('echo %%G ^| %WPKGBIN%\gawk -F"REG_EXPAND_SZ" "{gsub(/[ \t]+/, \"\", $1);print($1)}"') DO (
for /F "delims=" %%J IN ('echo %%G ^| %WPKGBIN%\gawk -F"REG_EXPAND_SZ" "{gsub(/^[ \t]+/, \"\", $2);gsub(/[ \t]+$/,\"\",$2); print($2)}"') DO (
set %%I=%%J
REM echo %%I=%%J
)
)
)
</source>
To be use like this:
<source lang="dos">
@echo off
IF "%Dektop%" == "" CALL %SOFTWARE%\bin\load-vars.cmd
echo "My Documents are located at %Personal%"
</source>
[[category:Documentation]]