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What do I need to do to be authorized to use the administrative login to check grades?

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In order to be able to use the administrative login, you must call the Registrar and be given administrator status. If you do not, you will be given an error message that you are not authorized by the registrar.

In Unix, how do I delete a file with a tilde in the username?

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In UNIX and GNU/Linux the '~' means something special when running a command. The '~' character refers to your own home directory in the Unix Operating System. For this reason Unix file names usually do not start with a '~'. One time when something like this may be seen is if a file was moved to the system from a different operating system that does not have the same restrictions on file names. These files can be removed by escaping the file name using the '\' character. For example if we wanted to remove a file called -foo we could enter the Unix command:

rm \~foo

The

How do I remove a file in Unix with a dash in the file name?

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In UNIX and GNU/Linux the '-' means something special when running a command. The '-' character tells the Unix Operating System that the next character is what is called a option, which tells the operating system how a command is going to be run. For this reason Unix file names usually do not start with a '-'. One time when something like this may be seen is if a file was moved to the system from a different operating system that does not have the same restrictions on file names. These files can be removed by escaping the file name using the './' character. For example if we wanted to remove a file called -foo we could enter the Unix command:

What kind of file is...?

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For the most part, you can use the file command to find out what kind of file a file is:

eden: ~> file T101979-05.tar.gz
T101979-05.tar.gz: gzip compressed data
eden: ~> file dangerous-fork-patch
dangerous-fork-patch: executable /sbin/sh script

You can also get a clue from the extension (although UNIX doesn't generally enforce any kind of file naming convention). Here are some common ones:

Extension Comments
--------- --------
.tar tar
.Z compress/uncompress/zcat

What is the FAQ database?

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The FAQ Database is a web-searchable database of NBCS FAQs. This database provides users with a place to look for common answers to frequently asked questions. At this time, the database is being filled with FAQs provided by help staff on each system and

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