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Ed is a line-oriented text editor, used to create, display, and modify text files (both interactively and via shell scripts). For most purposes, ed has been replaced in normal usage by full-screen editors (emacs and vi, for example). Ed was the original UNIX editor, and may be used by some programs. In general, however, you probably don't need to install it and you probably won't use it.
efibootmgr displays and allows the user to edit the Intel Extensible Firmware Interface (EFI) Boot Manager variables. Additional information about EFI can be found at http://developer.intel.com/technology/efi/efi.htm and http://uefi.org/.
ejabberd is a Free and Open Source distributed fault-tolerant Jabber/XMPP server. It is mostly written in Erlang, and runs on many platforms (tested on Linux, FreeBSD, NetBSD, Solaris, Mac OS X and Windows NT/2000/XP).
The eject program allows the user to eject removable media (typically CD-ROMs, floppy disks or Iomega Jaz or Zip disks) using software control. Eject can also control some multi-disk CD changers and even some devices' auto-eject features. Install eject if you'd like to eject removable media using software control.
Ekiga is a tool to communicate with video and audio over the internet. It uses the standard SIP and H323 protocols.
Electrum is an easy to use Bitcoin client. It protects you from losing coins in a backup mistake or computer failure, because your wallet can be recovered from a secret phrase that you can write on paper or learn by heart. There is no waiting time when you start the client, because it does not download the Bitcoin blockchain. Features: Instant on: Your client does not download the blockchain, it uses a remote server. Forgiving: Your wallet can be recovered from a secret seed. Safe: Your seed or private keys are not sent to the server. Information received from the server is verified using SPV No downtimes: Several public servers are available, you can switch instantly. Ubiquitous: You can use the same wallet on different computers, it will auto-synchronize. Cold Storage: You can have secure offline wallets and still safely spend from an online computer. Open: You can export your private keys into other Bitcoin clients. Tested and audited: Electrum is open source and was first released in November 2011. User interfaces Electrum has several user interfaces, that share the same wallet code: Classic (Qt), Lite, Gtk, Android, Text (using curses). Go to screenshots to see some examples
Features The server indexes UTXOs by address, in a Patricia tree structure described by Alan Reiner (see the 'ultimate blockchain compression' thread in the Bitcointalk forum) The server requires bitcoind, leveldb and plyvel The server code is open source. Anyone can run a server, removing single points of failure concerns. The server knows which set of Bitcoin addresses belong to the same wallet, which might raise concerns about anonymity. However, it should be possible to write clients capable of using several servers.