NB: More recent documentation for Dyalog APL is available at https://docs.dyalog.com/20.0/.

Temporary Directory R←739⌶Y

Returns the name of a system temporary directory suitable for user files, as a character vector. The name reported does not include a trailing directory separator

Y is 0.

The result R is a character vector.

Example (Windows)

      739⌶0
C:/Users/Pete/AppData/Local/Temp

Example (non-Windows)

      739⌶0
/tmp