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Meaning of the dollar sign and ${var} explained #854
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@kpalamartchouk We are breaking the repo (see #759 for more information). Could you recreate this pull request against https://github.com/wking/swc-modular-shell. Thanks. |
| `filename` as a variable name and substitute its value on its place, | ||
| but not as some text or external command. | ||
| When using variables it is also possible to put the names into curly braces: | ||
| `$filename` is equivalent to `${filename}`. You may find this notation in |
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The curly braces notation is useful since $filename is different than ${file}name.
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Some words on why dollar sign is needed when expanding shell variable. ${variable} notation is also mentioned.