Frequently, the usage of whiptail in command substitutions and in particular on how the file descriptors need to be redirected to achieve a user interaction with the submitted output in a bash variable is explained incorrectly. This can lead to functional breakages of user code in unexpected ways, for example if stderr is redirected into a file the script just hangs. This commit introduces documentation for this use case to the man page.
Frequently, the usage of whiptail in command substitutions and in particular on how the file descriptors need to be redirected to achieve a user interaction with the submitted output in a bash variable is explained incorrectly. This can lead to functional breakages of user code in unexpected ways, for example if stderr is redirected into a file the script just hangs. This commit introduces documentation for this use case to the man page.