Pattern: Use of unescaped $
Issue: -
$ is special in double quotes, but there are some cases where it's interpreted literally:
- Following a backslash:
echo "\$" - 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.
Example of incorrect code:
echo "$"Example of correct code:
echo "\$"