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Updated Sc2035 (markdown)

koalaman
2015-12-05 13:43:48 -08:00
parent 2fc5d4c0b8
commit 6d9ec8dff7
1 changed files with 8 additions and 2 deletions
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Sc2035.md

@@ -1,11 +1,15 @@
# Use ./*.foo so names with dashes won't become options. # Use ./\*glob* or -- \*glob* so names with dashes won't become options.
### Problematic code: ### Problematic code:
rm * rm *
### Correct code: ### Correct code:
rm ./* rm ./*
rm -- * # This is sane, too, as -- is a popular end-of-options seperator
or
rm -- *
### Rationale ### Rationale
@@ -15,4 +19,6 @@ A file named `-f` (`touch -- -f`) will not be deleted by the problematic code. I
Using `./*` will instead cause the glob to be expanded into `./-f`, which no program will treat as an option. Using `./*` will instead cause the glob to be expanded into `./-f`, which no program will treat as an option.
Similarly, `--` by convention indicates the end of options, and nothing after it will be treated like flags.
For more information, see "[Filenames and Pathnames in Shell: How to do it Correctly](http://www.dwheeler.com/essays/filenames-in-shell.html)". For more information, see "[Filenames and Pathnames in Shell: How to do it Correctly](http://www.dwheeler.com/essays/filenames-in-shell.html)".