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2 changes: 1 addition & 1 deletion _episodes/05-permissions.md
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Expand Up @@ -182,7 +182,7 @@ The Permission Types that are used are:

The potential Assignment Operators are **+** (plus) and **-** (minus); these are used to tell the system whether to add or remove the specific permissions.

First, let's remove the ability for other users to read the `methane.pdb` file. We can do this by specifying the **a** permission group, the **r** permission type and the **-** (minus) operator. The command that we use to modify permissions is `chmod`.
First, let's remove the ability for other users to read the `methane.pdb` file. We can do this by specifying the **o** permission group, the **r** permission type and the **-** (minus) operator. The command that we use to modify permissions is `chmod`.

~~~
$ chmod o-r methane.pdb
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