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> sudo apt-get install python-opencv> cp /usr/lib/python2.7/dist-packages/cv2.so /opt/anaconda/lib/python2.7/site-packages/or > conda install -c https... 阅读全文
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> nm -D [file]|grep -w Uor> objdump -T [file]|grep "\*UND\*" 阅读全文
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remove files after pack:> tar --remove-files -cf all.tar *compression:- `-j`: bzip2- `-z`: gzipadd file to existed tarball: `-r`> tar -rf existed.tar ... 阅读全文
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list only directories:> ls -d /path/to/*/ 阅读全文
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internal variable of separator: `IFS` 阅读全文