Write a command to change the permission (others can read, owner can write and group members can execute only) of all the files and directories within the directory XYZ.
a. Write a command to change the permission (others can read, owner can write and group members can execute only) of all the files and directories within the directory XYZ. b. Write a command to list all the installed packages with their version number, whose name conations a pattern "Linux". c. Write a command to display the disk usage of all the files and directories under directory TEST in human readable format. d. Write a command to search all the files in ending with .doc, whose does not contains a pattern "package" with line number before it. e. Write a command to search all the files in your parent directory whose name is starting from a number in between 9 to 10. f. Write a command to create the partition of your disk named is diskl.
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