$
literal. Instead of
"It costs $"5
, use "It costs \$5"
echo "The apples are $""1 each"
eval "var=$"name
echo "The apples are \$1 each"
eval "var=\$name"
# or better yet: var="${!name}"
The script appears to be closing a double quoted string for the sole
purpose of making a dollar sign $
literal.
While this happens to work, the better solution is instead to escape it with a backslash. This allows the double quoted string to continue uninterrupted, thereby reducing the visual noise of stopping and starting quotes in the middle of a shell word.
None
ShellCheck is a static analysis tool for shell scripts. This page is part of its documentation.