'''[TIP] [http://www.tcl.tk/cgi-bin/tct/tip/431.html%|%#431]: Add 'tempdir' Subcommand to 'file'''', addresses the fact that `[file mkdir]` does not return an error if the target directory already exists, making it more akin to the [Unix%|%*nix] command `mkdir -p` than simply `mkdir` ** See Also ** [TIP #431 Discussion]: a summary of the issues and proposals <> TIP | [file mkdir]