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中国DOS联盟论坛 » DOS学习入门 & 精彩文章（教学室） » Question about the copy command!!!!!!!!!! View 830　Replies 1

Original Poster Posted 2007-10-27 18:02　·　中国山东青岛电信

ab200210

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Copy 123.jpg/b+123.rar/b 123456789.jpg
I have a question when using the above statement: what's the difference between /b and /a after a file??
How do you use them? Sometimes after merging, the rar file can't be opened!!!
Sometimes when merging a photo and an mp3 file, the mp3 file can't be opened either? Why????
Thanks!!!

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Floor 2 Posted 2007-10-27 18:20　·　中国上海松江区电信

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copy /?
copy /b copies in binary
this method is not suitable for merging mp3

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