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/E:OFF, command line parameter, 16
/E:ON, command line parameter, 16
Echo Reply, IP datagram, 314
Echo, IP datagram, 314
edit options, command-prompt, 9
EFI system partitions, 170–71
EMF (enhanced metafile), 270
enhanced metafile (EMF), 270
environment variables
built-in variables, 33–34
clearing, 34
error level, 111
localizing scope of, 39
names, 35–36
overview, 33–34
setting, 33–34
uses of, 4
value substitution, 36–38
eol option, file content/command output, 51–52
Eq (equals) operator, 109, 126
equ (equality) operator, 45
error codes, DISKPART scripts, 146
Error events, 104
errorlevel variables, 34, 111
errors
fixing disk errors, 162–63
redirecting, 22
escape character (^), 17, 36
Event Log service, 103. See also event logs
event logs, 103–18
customizing events, 111–13
event triggers, 113–18
event types, 104–6
filtering events, 108–11
types of logs, 103–4
viewing events, 106–8
Event Viewer, 105–6
event-based tasks, 59
EVENTCREATE, 106
creating custom events, 111
examples, 113
overview, 106
syntax of, 111–12
EVENTQUERY, 106–11
filter operators, 109
filtering examples, 110–11
format options, 108
overview, 106
syntax, 106–7
events
custom, 111–13
defined, 103
filtering, 108–11
properties, 105
types of, 104–6
viewing, 106–8
EVENTTRIGGERS
creating, 115–17
deleting, 118
displaying currently configured, 117–18
overview, 106
preparing for, 114–15
reasons for using, 113–14
executables, file extensions for, 19
exponential values, 42
extended partitions, 169–70
extended volumes, 184–85
external commands
MS-DOS command shell, 9
syntax of, 7
Windows command shell, 7–8
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