To change the permissions for users to rwx (read, write, execute), you can use the following command:
```
chmod u+rwx <filename>
```
Here, "u" stands for "user" and "rwx" stands for "read, write, execute". This command will give the user full permissions to the file.
If you want to apply the same permissions to a directory and all its contents, you can use the "-R" option to make the change recursively:
```
chmod -R u+rwx <directory>
```
Note that giving full permissions to a file or directory can be a security risk, so use this command with caution.
change the permissions (use letters) for users to: r w x
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