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Updated SC1000: $ is not used specially and should therefore be escaped. (markdown)

koalaman
2013-11-10 11:22:10 -08:00
parent 487d7c69cd
commit 878647f281
1 changed files with 10 additions and 8 deletions
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SC1000:-$-is-not-used-specially-and-should-therefore-be-escaped..md → SC1000.md

@@ -1,3 +1,13 @@
# $ is not used specially and should therefore be escaped.
### Problematic code:
echo "$"
### Correct code:
echo "\$"
### Rationale: ### Rationale:
`$` is special in double quotes, but there are some cases where it's interpreted literally: `$` is special in double quotes, but there are some cases where it's interpreted literally:
@@ -5,11 +15,3 @@
2. In a context where the shell can't make sense of it, such as at the end of the string, (`"foo$"`) or before some constructs (`"$'foo'"`). 2. In a context where the shell can't make sense of it, such as at the end of the string, (`"foo$"`) or before some constructs (`"$'foo'"`).
To avoid relying on strange and shell specific behavior, any `$` intended to be literal should be escaped with a backslash. To avoid relying on strange and shell specific behavior, any `$` intended to be literal should be escaped with a backslash.
### Problematic sample code:
echo "$"
### Correct sample code:
echo "\$"