Feature Group

bash internal / data manipulations / string manipulation and expansions / variable expansion (1)

1

bash

This demonstrates the difference between double and single quotes in Bash for variable expansion, emphasizing the importance of correct quoting practices.

echo "$variable" # => Some string
echo '$variable' # => $variable
# When you use a variable itself — assign it, export it, or else — you write
# its name without $. If you want to use the variable's value, you should use $.
# Note that ' (single quote) won't expand the variables!
# You can write variable without surrounding quotes but it's not recommended.

bash internaldata manipulationsstring manipulation and expansionsvariable expansion