运行此命令时出现错误：
for /f "delims=|" %f in ('dir /b y:\db\b') do "Y:\robocopy.exe" "y:\db\b\%f\" "y:\db\a\%f\Certificates and deliverables\" /e
"Y:\robocopy.exe" "y:\db\b\a 001\" "y:\db\a\a 001\Certificates and deliverables\" /e
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ROBOCOPY :: Robust File Copy for Windows :: Version XP010
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Started : Tue Mar 15 14:06:41 2011
Source : y:\db\b\a 001" y:\db\a\a\
Dest : y:\db\b\001\Certificates\
Files : and
deliverables"
Options : /S /E /COPY:DAT /R:1000000 /W:30
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2011/03/15 14:06:41 ERROR 123 (0x0000007B) Accessing Source Directory y:\db\b\a 001" y:\db\a\a\
The filename, directory name, or volume label syntax is incorrect.
我似乎无法让它工作，请帮助。