The Windows Command Processor cmd.exe
has two internal commands for deletion of files and folders:
- The command DEL is for the deletion of files with usage help output on running in a Windows command prompt window either
help del
or del /?
.
- The command RMDIR or with shorter name RD is for removal of directories with usage help output on running in a Windows command prompt window either
help rmdir
or rmdir /?
or help rd
or rd /?
.
Deletion of all *.svn files in an entire folder tree
There can be used in a Windows command prompt window or a Windows batch file the following command to delete really all files of which long or short 8.3 file name is matched by the wildcard pattern *.svn
in the directory %USERPROFILE%\Projects
or any of its subdirectories:
del /A /F /Q /S "%USERPROFILE%\Projects\*.svn" >nul 2>&1
The usage of option /A
to match all files independent on the file attributes replaces the implicit default /A-H
to ignore hidden files. So even files with hidden attribute are deleted by this command because of using the option /A
. Files matched by wildcard pattern *.svn
with hidden attribute set are ignored on not using the option /A
.
The option /F
forces a deletion of files with file extension .svn
which have the read-only attribute set. There would be output the error message Access is denied.
if a *.svn
file has the read-only attribute set and the option /F
is not used on running the command DEL.
The quiet option /Q
prevents the user confirmation prompt Are you sure (Y/N)?
.
The option /S
results in searching not only in the specified directory, but also in all its subdirectories including those with hidden attribute set even on not using option /A
for files of which long or short 8.3 name is matched by the wildcard pattern *.svn
.
The two redirections >nul
and 2>&1
result in redirecting the list of deleted files output to handle STDOUT (standard output) and the error messages output to handle STDERR (standard error) to the device NUL to suppress every output.
There are deleted also hard links and symbolic links matched by the wildcard pattern *.svn
on using this command, but not the files linked to on having a file name not ending with .svn
or being in a different directory tree.
Files matched by the wildcard pattern *.svn
currently opened by a process (program/application) with using shared access permissions to deny all other processes to delete the file as long as being opened by this process are not deleted by this command. File system permissions can result also in files not being deleted by this command.
Deletion of all *.svn folders in an entire folder tree
There can be used in a Windows command prompt window the following command to remove really all folders matching in long or short 8.3 folder name the wildcard pattern *.svn
in the directory %USERPROFILE%\Projects
and all its subdirectories:
for /F "delims=" %I in ('dir "%USERPROFILE%\Projects\*.svn" /AD /B /S 2^>nul') do @rd /Q /S "%I" 2>nul
The same command line for usage in a batch file containing @echo off
at top is:
for /F "delims=" %%I in ('dir "%USERPROFILE%\Projects\*.svn" /AD /B /S 2^>nul') do rd /Q /S "%%I" 2>nul
There is executed on more cmd.exe
in background with option /c
and the command line specified between '
as additional arguments to run in background the Windows Command Processor internal command DIR to search
- in the specified directory
%USERPROFILE%\Projects
- and in all its subdirectories because of option
/S
- for just directories because of using the option
/AD
which includes also junctions and symbolic directory links
- matching the wildcard pattern
*.svn
.
The file system entries (= directory names) matched by these criteria are output in bare format because of option /B
with full path because of option /S
to handle STDOUT of the background command process without surrounding "
even on full directory name containing a space or one of these characters &()[]{}^=;!'+,`~
. The error message output by DIR on not finding any name matching these criteria is redirected to device NUL to suppress it.
The redirection operator >
must be escaped with caret character ^
on FOR command line to be interpreted as literal character when the Windows Command Processor parses this command line before executing the command FOR which executes the embedded dir
command line with using a separate command process started in background.
The output list of directory names with their full paths to handle STDOUT is captured by cmd.exe
processing the batch file and processed by FOR after started cmd.exe
closed itself.
The FOR /F option delims=
defines an empty list of string delimiters which results in each entire directory name is assigned completely one after the other to the specified loop variable I
.
The command RD is executed to delete quietly because of option /Q
the directory with all files and all subdirectories because of option /S
.
There are deleted also junctions (soft links) and symbolic directory links matched by the wildcard pattern *.svn
on using this command, but not the directories linked to on having a directory name not ending with .svn
or being in a different directory tree.
A directory matched by the wildcard pattern *.svn
in which a file is currently opened by a process (program/application) with using shared access permissions to deny all other processes to delete the file as long as being opened by this process is not deleted by this command and of course also no directory above the directory containing the file which cannot be deleted at the moment. File system permissions can result also in directories not being deleted by this command. Windows prevents by default also the deletion of a directory which is the current working directory of any running process.
Other useful information regarding to deletion of files and folders
The directory path %USERPROFILE%\Projects\
can be removed completely or replaced by .\
in the commands above to delete the files and folders matching the wildcard pattern *.svn
in the current directory of the Windows Command Processor process which executes the commands.
The directory path %USERPROFILE%\Projects\
can be replaced by %~dp0
to delete the files and folders matching the wildcard pattern *.svn
in the directory of the batch file on using the command lines above in a batch file independent on which directory is the current directory on execution of the batch file.
The directory path %USERPROFILE%\Projects\
can be replaced also by a relative path. Please read the Microsoft documentation about Naming Files, Paths, and Namespaces for more details about relative paths.
To understand the commands used and how they work, open a command prompt window, execute there the following commands, and read the displayed help pages for each command, entirely and carefully.
del /?
dir /?
for /?
rd /?
Run mklink /?
for help on how to create file and directory links explained very well by MKLink.
See also: