difference between regular file and pipe file in unix
Unix file types These named pipes are special files that can exist anywhere in the file system. These named pipe special files are made with the command mkfifo as in mkfifo mypipe.
JAR (file format) A JAR (Java ARchive) is a package file format typically used to aggregate many Java class files and associated metadata and resources (text, images, etc.) into one file for distribution.[3]