Everyone knows when entering a command in the Linux character interface, sometimes you need to enter a lot of characters, if you often enter characters one by one, it is more cumbersome. Assuming that the typed characters are sufficient to determine the next unique file, we only need to press the TAB key on the keyboard to automatically replace the remainder of the file name, for example, to put the file DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD DCC .tar.gz is unpackage, when we type in the TAR XVFZ / CCC / D in the command line, if the file is the only file in this directory, you can press the Tab key on the keyboard directly. When the command will be automatically fuffed as: TAR XVFZ /CCCC/ddddddddddddddddddddddddddddddddddddddddddd to improve the input efficiency.
