[PDF] assigning values to variables in shell script

The variables are defined and assigned a value using the = operator. Here's the syntax. Let's look at an example where we define the variable MY_NAME and assign a value to it. Note: There should not be any space before and after the = operator.
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  • How do you assign a value to a script variable?

    Values can be assigned to script variables by using the script element :SET. You can specify the assigned value (regardless of its data type) with or without inverted commas (script literal), or it can be the return code of a script function.

  • How to assign integer value to a variable in shell script?

    As with ordinary variables, integer variables need not be declared. A variable can simply be given an integer value, and then used in an arithmetic expression. Variables do not have to be explicitly declared integer type to be used in arithmetic expressions.

  • How to assign a string to a variable in shell script?

    Basic String Initialization
    To initialize a string, you directly start with the name of the variable followed by the assignment operator(=) and the actual value of the string enclosed in single or double quotes. Output: This simple example initializes a string and prints the value using the “$” operator.
  • Using an Array
    Another way to assign multiple variables using a command's output is to assign the command output fields to an array. In the example, we used the Bash built-in readarray command to read the date command's output. The default delimiter used by the readarray command is a newline character.
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