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Created SC1003 (markdown)

Mingye Wang
2016-02-27 18:57:19 -05:00
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Are you trying to escape that single quote? `echo 'You'\''re doing it wrong'`.
==============================================================================
### Problematic code:
```sh
echo 'You\'re doing it wrong' # unclosed single quote
```
### Correct code:
```sh
echo 'You'\''re doing it wrong'
echo $'You\'re doing it wrong' # ksh/bash/zsh "c-style" quote
```
### Rationale
In POSIX shell, the shell cares about nothing but another single quote to terminate the quoted segment. Not even backslashes are interpreted.
[POSIX.1 Shell Command Language § 2.2.2 Single Quotes](http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_02_02):
> Enclosing characters in single-quotes ( `''` ) shall preserve the literal value of each character within the single-quotes. A single-quote cannot occur within single-quotes.