The FOR /R command is meant to traverse sub-folders.
The general syntax is:
FOR /R \[\[drive:\]path\] %variable IN (set) DO command \[command-parameters\]
Walks the directory tree rooted at \[drive:\]path, executing the FOR
statement in each directory of the tree. If no directory
specification is specified after /R then the current directory is
assumed. If set is just a single period (.) character then it
will just enumerate the directory tree.
To delete every *.log file in all the folders of your profile, type:
for /r "%userprofile%" %i in (*.log) do del /q "%i"
NOTE: If used in a batch file, the %variable must be %%variable.
To list all the sub-folders of your profile, type:
for /r "%userprofile%" %i in (.) do @echo %i
To list every sub-folder of the current directory, type:
for /r %i in (.) do @echo %i