we can modify them using the chmod command. We pass in an octal permissions string and a file name, and it modifies the file we specify to have the permissions reflected by that string.

Typing chmod 0664 test.txt will give theowner read and write permissions, the groupread and write permissions, and everyone read only permissions.

Instructions

Modify test.txt so it has the following permissions:

• owner -- read, write, and execute
• group -- read and write
• everyone -- no permissions

Remember to add a 0 in front of the octal permissions string.

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chmod 0760 test.txt