There is no text output. That command would create a directory / folder called "DesktopCS604".
mkdir directoryname
mkdir aptech/Linux
mkdir directoryname mkdir "directory name with spaces"
In a Linux terminal, the command to create a new directory is: mkdir .
From a terminal: mkdir mountpoint mount -o loop YourImage.iso mountpoint
mkdir directory1 directory2 directory3 directory4 directory5
secret
secret
end of line mark.
mkdir First\ Second\ Third\ Fourth\ FifthThat would create a folder / directory with the name First Second Third Fourth Fifth.
0 1 2
Standard error -- stderr