Linux Commands: Remove variable or function names


unset-Linux Command

unset command- Remove variable or function names

Syntax: unset [-fv] [name]

Description: Sets the internal variable name to value or, if more than one value is given, to the concatenation of all of them. If no second argument is given, the variable is just set with not value. To unset a variable, use the \unset command.
Valid variable names can contain characters, digits, and underscores. See the section about psql variables for details.
Although you are welcome to set any variable to anything you want to, psql treats several variables special. They are documented in the section about variables

Example:

Related: env, echo, export, function, readonly, set

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