2017-10-13 15:42:02 +08:00
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# update-alternatives
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2017-10-23 12:09:28 +08:00
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> A convenient tool for maintaining symbolic links to determine default commands.
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2017-10-13 15:42:02 +08:00
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- Add a symbolic link:
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2017-10-24 10:03:41 +05:30
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`sudo update-alternatives --install {{path/to/symlink}} {{command_name}} {{path/to/command_binary}} {{priority}}`
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2017-10-13 15:42:02 +08:00
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2017-10-24 10:03:41 +05:30
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- Configure a symbolic link for "java":
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2017-10-24 10:17:54 +08:00
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2017-10-24 10:03:41 +05:30
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`sudo update-alternatives --config {{java}}`
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2017-10-13 15:42:02 +08:00
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- Remove a symbolic link:
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2017-10-24 10:03:41 +05:30
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`sudo update-alternatives --remove {{java}} {{/opt/java/jdk1.8.0_102/bin/java}}`
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2017-10-13 15:42:02 +08:00
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2017-10-22 19:54:39 +08:00
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- Display information about a specified command:
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2017-10-13 15:42:02 +08:00
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2017-10-24 10:03:41 +05:30
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`update-alternatives --display {{java}}`
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2018-10-16 19:30:40 +02:00
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- Display all commands and their current selection:
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`update-alternatives --get-selections`
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