typeset:tldr:9b43e

The command "typeset ${variable}="${value}"" is used to create or modify a variable in a shell script (typically in the Bash shell). Here's the breakdown of the command:

1. "typeset": This is a shell builtin command that is used to declare and define variables. It is used to define the properties of variables, such as their scope, type, and attributes.

2. "${variable}": This is the name of the variable to be created or modified. The variable name is enclosed in curly braces to explicitly separate it from any surrounding text.

3. "="${value}"": This is the value assigned to the variable. It could be a string, number, or any other valid data type supported by the shell. The value is enclosed in double quotes to preserve any whitespace or special characters that might be included.

By running this command, you are creating a new variable or modifying an existing one with the specified name (variable) and assigning it the specified value. The "typeset" command ensures that the variable is properly defined with the desired attributes.