When to use curly braces in bash string concatenation?

Elsa Brakus asked a question: When to use curly braces in bash string concatenation?
Asked By: Elsa Brakus
Date created: Wed, Mar 17, 2021 11:51 PM

Content

Top best answers to the question «When to use curly braces in bash string concatenation»

  • Because bash considered $VAR_ as one variable and $VAR2 as second. Since $VAR_ doesn't exist so Hello is missing. So in such case always use curly braces to denote a variable when working with concatenation. This is the one of the most important thing you should always remember when working with bash string concatenation.

FAQ

Those who are looking for an answer to the question «When to use curly braces in bash string concatenation?» often ask the following questions:

💻 Which of the following operators can be used for string concatenation in bash?

You can also concatenate strings by using the += operator. It is one of the easiest way to concatenate strings. You can also use the += operator to concatenate strings inside a “for” loop.

💻 Does not equal bash string?

  • To check if two strings are not equal in bash scripting, use bash if statement and not equal to != operator. In this example program, we will check if two strings are equal using IF statement and Equal-to operator.

💻 How to cut a string bash?

  • There is a built-in function named trim () for trimming in many standard programming languages. Bash has no built-in function to trim string data. But many options are available in bash to remove unwanted characters from string data, such as parameter expansion, sed, awk, xargs, etc.

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