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Update update-alternatives.md

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Max Xu 2017-10-15 21:27:39 +08:00 • committed by GitHub
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pages/linux/update-alternatives.md
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# update-alternatives # update-alternatives
> A convenient tool for maintaining symbolic links determining default commands. > A convenient tool for maintaining symbolic links that determining default commands.
- Add a symbolic link: - Add a symbolic link:
`sudo update-alternatives --install /usr/bin/java java /opt/java/jdk1.8.0_102/bin/java 300` `sudo update-alternatives --install /usr/bin/java java /opt/java/jdk1.8.0_102/bin/java 300`
- Config a symbolic link: - Configure a symbolic link:
`sudo update-alternatives --config java` `sudo update-alternatives --config java`
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`sudo update-alternatives --remove java /usr/bin/java` `sudo update-alternatives --remove java /usr/bin/java`
- Display information about the link group: - Display information about the specified link group:
`update-alternatives --display java` `update-alternatives --display java`