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23 lines
1.2 KiB
23 lines
1.2 KiB
diff -up yum-3.4.3/docs/yum.conf.5.orig yum-3.4.3/docs/yum.conf.5 |
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--- yum-3.4.3/docs/yum.conf.5.orig 2017-11-01 14:58:28.259740017 +0100 |
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+++ yum-3.4.3/docs/yum.conf.5 2017-11-01 14:58:48.528648100 +0100 |
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@@ -1356,8 +1356,17 @@ the same name. If the shell environment |
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configuration file variable will not be replaced. |
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.LP |
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-As of 3.2.28, any file in /etc/yum/vars is turned into a variable named after |
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-the filename (or overrides any of the above variables). |
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+When variable names are parsed in a string, all alphanumeric characters and |
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+underscores immediately following a $ sign are interpreted as part of a name. |
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+If a variable is undefined, it will not be replaced. |
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+For example, the strings $releasever-foo or $releasever/foo will be expanded |
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+with the $releasever value accordingly, whereas $releaseverfoo or |
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+$releasever_foo will not be expanded. |
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+ |
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+As of 3.2.28, any properly named file in /etc/yum/vars is turned into |
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+a variable named after the filename (or overrides any of the above variables). |
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+Filenames may contain only alphanumeric characters and underscores |
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+and be in lowercase. |
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Note that no warnings/errors are given if the files are unreadable, so creating |
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files that only root can read may be confusing for users.
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