E

E-mail, 227–245.

See also mailx utility

accessing remotely with fetchmail, 244

forwarding, 242–243

GNOME, 181–182

KDE, 211

new mail notification, 243

tools for managing, 242–244

on the UNIX System, 227–228

vacation command, 243

E-mail applications, 782–783

echo command, 589, 607–608

echo escape sequences, 607

Eclipse IDE, 732

Editing buffer (vi editor), 135

Editors (text), 125–127, 133–164

edquota command, 418–419

egrep command, 552–553

ElectricFence tool, 726

emacs editor, 150–160

commands and input, 151

copying and moving text, 157

creating text, 152

deleting text, 153

editing with multiple windows, 157–158

environments, 158–159

exiting, 152

help, 154

incremental searches, 156

modifying text, 156–157

moving the window in the buffer, 153

moving within a window, 153

obtaining, 159–160

regular expression searches, 156

sample window, 152

searching for text, 156

setting terminal display type, 151

starting, 152

ten-minute tutorial, 154–156

using to edit directories, 158–159

using to issue shell commands, 158

Emblems, in Nautilus file manager, 177

Empress, 767

Encrypting files, 336–341, 345

using DES, 513

using GPG, 347

using PGP, 345

Encryption key, hiding, 337

Engineering applications, 788

Enterprise applications (HP-UX), 24

env command, 115

Environment, explained, 114

Environment subsystem (Microsoft), 31

Environment variables, 114–115, 118

error_log file (Apache), 480

Error messages, 591

Escape sequences, in Perl, 647

ethers file (etc/ethers), 499

Event handling, AWT, 749–750

Evince document viewer, 180, 210

Evolution utility (GNOME), 183, 241–242

Evolution utility (KDE), 211, 213

Exceptions

in java, 744–746

in Python, 697–698

Executable files, 63

Execute permissions, 81

EXINIT variable, 145–146

exit commands, 52, 632

exit system call, 320

export command, 115

exportfs command, 448

exportfs -a command, 448–449

exportfs -u command, 450

Exporting file systems, 442

expr command, 596

.exrc file, 145

Extended C shell. See tcsh shell

Extensible UNIX, 8