Unix Linux | File system

1. ls [options ] [file ] Displays the file information in the directory

• • -A show all files (including hidden files)
  • -L View details about the file's properties, size, and more
  • -al View all files and their attribute information in the current directory
  • -D Display Directory property information
  • -ld displaying permissions and property information for a directory
  • -f,-classify When displaying directory entries, add a/

2. chown[option] [parameter] to change the owner of a file or directory and the group to which it belongs

3. find[options] [parameters] are used to locate files under the specified directory. Any string that precedes the parameter will be treated as the name of the directory you want to find. If you use this command without setting any parameters, the Find command looks for subdirectories and files under the current directory. and displays all the subdirectories and files that are found. (Http://man.linuxde.net/find)

• • -atime<24 hours;: Finds files or directories that have been accessed at a specified time, in 24-hour terms;

  • DayStart: Calculate the time from today;

The 4.cut[option] [parameter] is used to display the specified part of the row, deleting the specified field in the file. Cut is often used to display the contents of a file, similar to the following type command. (http://man.linuxde.net/cut)

• • -B: Displays only the contents of the direct range specified in the row;
  • -C: Displays only the characters of the specified range in the row;
  • -D: Specifies the delimiter for the field, and the default field delimiter is "tab";
  • -F: Displays the contents of the specified field;

　　　　

Unix Linux | File system