Simple tips and commands for linux beginners (2)

Simple tips and commands for linux beginners (2) ctrl + alt + d display desktop pwd display current path uname-r View machine kernel version touch new empty file/change file creation time if this file is not available new empty file, if cd... news & nbsp; | simple tips and commands for linux beginners (2) ctrl + alt + d display desktop pwd display current path uname-r View machine kernel version touch new empty file/change file creation time if this file is not available new empty file, if cd enters a file directory cd. enter the current directory cd .. go to the upper-level directory cd-go to the previous working directory cd ~ Enter the main directory ls to display the details of the ls-l display file in the current directory ls-a to show all files (including hidden files) ls-h is displayed in a language that humans can understand (for example, 20 K) ls-d displays the information of the directory itself. ls-lh displays detailed information in a language that humans can understand. other options can combine du to view the size of a file or folder. du-s to summarize the size of all files. du-h is in a readable format