Sed &ampamp;amp; Awk.pdf

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1、Symbols

2、A

3、B

4、C

5、D

6、E

7、F

8、G

9、H

10、I

11、K

12、L

13、M

14、N

15、O

16、P

17、Q

18、R

19、S

20、T

21、U

22、V

23、W

24、X

25、YIndex:SymbolsandNumbers&(ampersand)&&(logicalAND)operator:7.8.RelationalandBooleanOperatorsinreplacementtext5.3.Substitution5.3.1.ReplacementMetacharacters*(asterisk)**(exponentiation)operator:7.6.Expressions**=(assign

26、ment)operator:7.6.Expressions*=(assignment)operator:7.6.Expressionsasmetacharacter3.1.That'sanExpression3.2.5.RepeatedOccurrencesofaCharactermultiplicationoperator:7.6.Expressions(backslash)7.6.Expressions(seealsoescapesequences,awk)<,>escapesequences3.2.11.What'stheWor

27、d?PartII11.2.3.4.Extendedregularexpressions`,'escapesequences:11.2.3.4.Extendedregularexpressionscharacterclassesand:3.2.4.CharacterClassesasmetacharacter3.2.ALine-UpofCharacters3.2.1.TheUbiquitousBackslashinreplacementtext5.3.Substitution5.3.1.ReplacementMetacharacters{

28、}(braces){}metacharacters3.2.ALine-UpofCharacters3.2.8.ASpanofCharactersinawk2.1.Awk,bySedandGrep,outofEd2.4.1.Runningawk8.1.ConditionalStatementsgroupingsedcommandsin4.2.1.GroupingCommands5.1.AbouttheSyntaxofsedCommands[](brackets)metacharacters3.2.ALine-UpofCharacters3

29、.2.4.CharacterClasses[::]metacharacters:3.2.4.3.POSIXcharacterclassadditions[..]metacharacters:3.2.4.3.POSIXcharacterclassadditions[==]metacharacters:3.2.4.3.POSIXcharacterclassadditions^(circumflex)^=(assignment)operator:7.6.Expressionscharacterclassesand3.2.ALine-UpofCha

30、racters3.2.4.2.Excludingaclassofcharactersexponentiationoperator:7.6.Expressionsasmetacharacter3.2.ALine-UpofCharacters3.2.7.PositionalMetacharactersinmultilinepatternspace:6.1.1.AppendNextLine:(colon)forlabels:6.4.AdvancedFlowControlCommands$(dollarsign)asend-of-linemetac

31、haracter3.2.ALine-UpofCharacters3.2.7.PositionalMetacharactersforlastinputline:4.2.AGlobalPerspectiveonAddressinginmultilinepatternspace:6.1.1.AppendNextLine$0,$1,$2,...2.4.1.Runningawk7.5.1.ReferencingandSeparatingFields.(dot)metacharacter3.1.That'sanExpression3.2.2.AWild

32、card3.2.5.RepeatedOccurrencesofaCharacter=(equalsign)==(equalto)operator:7.8.Relationalan