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中国DOS联盟论坛 » DOS学习入门 & 精彩文章（教学室） » [Help] Question about DOS command usage View 861　Replies 2

Original Poster Posted 2003-08-22 00:00　·　中国湖南长沙电信

YP7351

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In MS-DOS 7.10, there is a statement in AUTOEXEC.BAT:
EXTRACT /E /L %RAMDRIVE%\SYSTEM DOSET.CAB>NUL
Could everyone please explain the meanings of the EXTRACT parameters /E and /L, and also the meaning of >NUL. Many thanks!

Floor 2 Posted 2003-08-23 00:00　·　中国广东广州荔湾区电信

电吉入侵

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/E
Extract, replacing “*.*”, that is, extract all files
/L dir
Specifies the location of the extracted files; the default is the current directory
>nul
Redirects to the null device, so the extraction process is not displayed on the screen

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Floor 3 Posted 2003-08-24 00:00　·　中国湖南长沙电信

YP7351

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Thanks

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