"1" zero-length file created in home directory when term window opened
What is the zero-length file named "1" which is created in the home directory whenever a term window is opened?
It happens whether the window is opened from Terminal or iTerm. The date on the file is updated each time a new window is opened.
Any ideas what the purpose might be? Removing it is harmless; it is just recreated the next time a term window opens.
iMac 27″ 5K, macOS 10.15