sed -i -E "s/еж([аиу][^а-я])/ёжик\1/g" *ru*
grep -E "еж[аиу][^а-я]" *ru*
Comment: [^а-я] includes all spaces and punctuation and also finish of string
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<array>
<dict>
<key>default</key>
<integer>100</integer>
<key>image</key>
<string>Health</string>
<key>max</key>
<integer>200</integer>
<key>min</key>
<integer>50</integer>
<key>title</key>
<string>Initial Health</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$damagepct</string>
<key>default</key>
<integer>100</integer>
<key>image</key>
<string>Damage</string>
<key>max</key>
<integer>300</integer>
<key>min</key>
<integer>10</integer>
<key>title</key>
<string>Damage Modifier</string>
</dict>
<dict>
<key>checkOverMax</key>
<true/>
<key>times1000</key>
<true/>
<key>command</key>
<string>e$turntime</string>
<key>default</key>
<integer>45</integer>
<key>image</key>
<string>Time</string>
<key>max</key>
<integer>100</integer>
<key>min</key>
<integer>1</integer>
<key>title</key>
<string>Turn Time</string>
</dict>
<dict>
<key>checkOverMax</key>
<true/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$sd_turns</string>
<key>default</key>
<integer>15</integer>
<key>image</key>
<string>SuddenDeath</string>
<key>max</key>
<integer>50</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>Sudden Death Timeout</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$waterrise</string>
<key>default</key>
<integer>47</integer>
<key>image</key>
<string>SuddenDeath</string>
<key>max</key>
<integer>100</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>Water Rise Amount</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$healthdec</string>
<key>default</key>
<integer>5</integer>
<key>image</key>
<string>SuddenDeath</string>
<key>max</key>
<integer>100</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>Health Decrease</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$ropepct</string>
<key>default</key>
<integer>100</integer>
<key>image</key>
<string>Rope</string>
<key>max</key>
<integer>999</integer>
<key>min</key>
<integer>25</integer>
<key>title</key>
<string>Rope Length (%)</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$casefreq</string>
<key>default</key>
<integer>5</integer>
<key>image</key>
<string>Box</string>
<key>max</key>
<integer>9</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>Crate Drop Turns</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$healthprob</string>
<key>default</key>
<integer>35</integer>
<key>image</key>
<string>Health</string>
<key>max</key>
<integer>100</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>Health Kit Probability (%)</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$hcaseamount</string>
<key>default</key>
<integer>25</integer>
<key>image</key>
<string>Health</string>
<key>max</key>
<integer>200</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>Health Amount in Kit</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<true/>
<key>command</key>
<string>e$minestime</string>
<key>default</key>
<integer>3</integer>
<key>image</key>
<string>Time</string>
<key>max</key>
<integer>5</integer>
<key>min</key>
<integer>-1</integer>
<key>title</key>
<string>Mines Time</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$minesnum</string>
<key>default</key>
<integer>4</integer>
<key>image</key>
<string>Mine</string>
<key>max</key>
<integer>80</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>Mines Number</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$minedudpct</string>
<key>default</key>
<integer>0</integer>
<key>image</key>
<string>Dud</string>
<key>max</key>
<integer>100</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>Dud Mines Probability (%)</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$explosives</string>
<key>default</key>
<integer>2</integer>
<key>image</key>
<string>Damage</string>
<key>max</key>
<integer>40</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>Explosives</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$getawaytime</string>
<key>default</key>
<integer>100</integer>
<key>image</key>
<string>Time</string>
<key>max</key>
<integer>999</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>Get Away Time (%)</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$airmines</string>
<key>default</key>
<integer>0</integer>
<key>image</key>
<string>Mine</string>
<key>max</key>
<integer>80</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>Air Mines</string>
</dict>
<dict>
<key>checkOverMax</key>
<false/>
<key>times1000</key>
<false/>
<key>command</key>
<string>e$worldedge</string>
<key>default</key>
<integer>0</integer>
<key>image</key>
<string>Earth</string>
<key>max</key>
<integer>3</integer>
<key>min</key>
<integer>0</integer>
<key>title</key>
<string>World Edge</string>
</dict>
</array>
</plist>