unset

Delete one or more variables.

Syntax

unset ?-nocomplain? ?--? ?name ...?

Parameters

• -nocomplain: Suppress errors if variable doesn't exist
• --: Marks end of options (use if variable name starts with dash)
• name: One or more variable names to delete

Description

Removes the specified variables from the current scope. By default, raises an error if a variable doesn't exist. Use -nocomplain to silently ignore missing variables.

Examples

Basic unset

Output

Using -nocomplain

Output

Unsetting multiple variables

Output

See Also

• set - Get or set variable value
• info exists - Check if variable exists