Index_E

E

echo function, 10, 27 “29

echon script, 28 “29, 36 “37

email

adding alias, 307 “9

turning web pages into, 210 “11

enabled script, 141 “44

enabled services, 141 “44

env command, 204

environment variables , 10

error_log file, 264 “68

escape sequences, 219

/etc/crontab file, 153

/etc/passwd file, 113, 125, 126

/etc/skel directory, 126

eval function, 106, 140

events, keeping track of, 86 “91

code, 86 “89

hacking script, 91

results of script, 90 “91

exceeds disk quota message, 114

exchangerate script, 191 “92

Extensible Markup Language (XML), 166

external links, broken, 232 “35

extracting URLs from web pages, 175 “78