command [-options] [arguments]
ls list files
ls -a show all files, including hidden files
ls -l details
ls -d to view file attributes
file details
drwx-xrr-x 19 root root 1205 3月 3 08:10 fileName
d folder -file -l softlink
rwx owner permissions -xr all group permissions rx others permissions
file r readable w writable x executable
Folder r can list files w can add or delete files x can open files rx is generally used together
1205 ID index of each file
March 3 08:10 File last modified time
fileName file name