"Daily one linux command 2" command execution order:

ii. Order of command :

if the Shell built -in commands/bin as well/usr/bin There are orders under the pwd,So when we execute this command,,which one will be executed? the answer is first priority execution . Shell built -in commands,re-execute the settings in the path;So if you have a command with the same name,mustneed to be aware of sequential settings,or enter the full path directly.  

The Execute tree command appears as follows:

Then execute the command under/usr/bin/tree:

The result is the same, stating that executing the tree is the command in/usr/bin/tree, which means that if there is a built-in command tree in the shell (which is not, of course), you must enter/usr/bin/tree to execute the non-built command.

"Daily one linux command 2" command execution order: