problem with Dos mkdir

[SC]

I try to create a directory on DOS environment, using the following:

proc log_dir {dir_name} {
# Create Log Dir
if [catch {exec command.com /c mkdir $dir_name]} iErr] {
puts "Error: $iErr"
return 0
}

set log_dir "c:\\test_data\\abc"
log_dir $log_dir

Sometime it work, and sometimes it can't. I am really confused.

[USCode]

Instead of using "exec", have you tried Tcl's "file mkdir ..." ?