what command creates a subdirectory under a directory?
The following command will create test directory inside /tmp/. Here the command assumes that /tmp/ directory already exists: $ mkdir /tmp/TEMP The last command example will create a new TEMPdirectory as a subdirectory of /tmp/test even if test does not exists. $ mkdir -p /tmp/test/TEMP The above -p will instruct mkdir directory to create any parent directory if it does not exist.