$var

Returns information about currently set variables, local or set.

$var(variable name [,N])[.value|.local]

• Variable name is a wild card value.
• N tells us we want the Nth matching variable.
  • N is 0 by default, and therefore can be used to check for existence without it
• Returns
  • Variable name by default
  • Value if .value is specified
  • If .local is specified, returns $true or $false based on whether or not the matching variable is a local variable

See Also

set var Local Variables