文件操作 - README.Debian
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文件: /usr/share/doc/file/README.Debian
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file for Debian =============== additional magic files ---------------------- How users can inject their own magics for fun: 1. open /etc/magic and /etc/magic.mime with a text editor, as root, and add your own magics. 2. have fun. How package maintainers can inject their own magics for profit: 1. place your magics as plain text files in /usr/share/file/${binary_package_name}. 2. call 'file --compile ${binary_package_name}' from /usr/share/file in your postinst script (maybe we should have a trigger for that at some point). this will produce the binary magics /usr/share/file/${binary_package_name}.mgc. 3. remove the binary magics in your postrm script. 4. profit. seccomp support --------------- Starting with version 1:5.37-1, file is built using libseccomp. This will introduce a regression if applications call the program with the --uncompress option, and file(1) needs the help of external programs for uncompression.
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