"Traditionally, many shell scripts take the name of the program with the pid as a suffix and use that as a temporary file name"

man mktemp: > The mktemp utility is provided to allow shell scripts to safely use temporary files. **Traditionally, many shell scripts take the name of the program with the pid as a suffix and use that as a temporary file name.** This kind of naming scheme is predictable and the race condition it creates is easy for an attacker to win. Could anybody show an example of such a file name? And where can I find such filenames "in real life"?