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Do variables need quotation marks?
Storing text in variables Double quotes are required if there is going to be an apostrophe in the string. Try storing a string within a variable without quotes, see what happens? Numbers do not require quotation marks, whereas they are mandatory for storing strings.
Is string is a data type?
A string is generally considered a data type and is often implemented as an array data structure of bytes (or words) that stores a sequence of elements, typically characters, using some character encoding.
How to use double quotes in a variable?
You could used double quotes around your command, and then use whatever single and double quotes you need inside provided you escape double ones. use printf to replace the variable token with the expanded variable. Variables can contain single quotes.
How to use variables in single quoted strings?
Variables are expanded in double quoted strings, but not in single quoted strings: If you can simply switch quotes, do so. If you prefer sticking with single quotes to avoid the additional escaping, you can instead mix and match quotes in the same argument: $ echo ‘single quoted.
How to use variables inside single quotes in shell?
It looks like your command is maybe setting environment variables based on arguments given it on the command-line. It may be you can do: …and set its environment for it at invocation. Otherwise, shell quotes typically delimit arguments or escape other special shell characters from shell interpretation.
How to print variable inside quotation marks in Python?
The % operator (see Bhargav Rao’s answer) also works, even in Python 3 so far, but is intended to be removed in some future version. The advantage to using repr () is that quotes within the string will be handled appropriately. If you have an apostrophe in the text, repr () will switch to “” quotes.