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Index: R
- r command (sed) : 5.11. Reading and Writing Files
- rand() : 9.1.3. Random Number Generation
- random numbers : 9.1.3. Random Number Generation
- range of characters : (see character classes)
- --re-interval option (gawk) : 11.2.3.1. Command line options
- read command : (see r command (sed))
- reading : 10.1. The getline Function
- from files
- 5.11. Reading and Writing Files
- 10.1.1. Reading Input from Files
- from pipe : 10.1.3. Reading Input from a Pipe
- readsource script (example) : 13.6. readsource - Format Program Source Files for troff
- RECLEN variable (tawk) : 11.3.2.1. Tawk language extensions
- records, awk
- 2.4.1. Running awk
- 7.5. Records and Fields
- B.2.1. Records and Fields
- arrays and : 8.4. Arrays
- fixed-length (tawk) : 11.3.2.1. Tawk language extensions
- multiline : 7.7.1. Working with Multiline Records
- NF variable : 7.7. System Variables
- NR variable
- 7.7. System Variables
- 8.4. Arrays
- 10.1.2. Assigning the Input to a Variable
- RT variable (gawk) : 11.2.3.5. Regular expression record terminators
- separators for : (see delimiters)
- redirection
- 2.3.2.1. Saving output
- 4.3. Testing and Saving Output
- 10.5. Directing Output to Files and Pipes
- references : Other Sources of Information About sed and awk
- referencing fields
- 2.4.1. Running awk
- 7.5.1. Referencing and Separating Fields
- regular expressions
- 1.4. Four Hurdles to Mastering sed and awk
- 3. Understanding Regular Expression Syntax
- B.2.3. Patterns
- B.2.4. Regular Expressions
- (see also pattern matching)
- as constants : 7.8. Relational and Boolean Operators
- delimiters for
- 2.1. Awk, by Sed and Grep, out of Ed
- 5.3. Substitution
- dynamic, faking : 11.1.5. Faking Dynamic Regular Expressions
- ed and : 2.1. Awk, by Sed and Grep, out of Ed
- examples of : 3.3. I Never Metacharacter I Didn't Like
- gawk extensions to : 11.2.3.4. Extended regular expressions
- metacharacters for : (see netacharacters)
- POSIX standard for : 3.2.4.3. POSIX character class additions
- RS variable as
- 11.2.1.6. Regular expression record separators (gawk and mawk)
- 11.3.2.1. Tawk language extensions
- tawk and : 11.3.2.1. Tawk language extensions
- union of
- 3.2. A Line-Up of Characters
- 3.2.9. Alternative Operations
- writing : 3.2.3. Writing Regular Expressions
- relational expressions : B.2.3. Patterns
- relational operators : 7.8. Relational and Boolean Operators
- replacement metacharacters : 5.3.1. Replacement Metacharacters
- numbered saves : 5.3.1. Replacement Metacharacters
- replacing text
- 1.2. A Stream Editor
- 3.2.12.1. The extent of the match
- retrieving data from files : 7.11. Information Retrieval
- return statement
- 9.3. Writing Your Own Functions
- 9.3.1. Writing a Sort Function
- revision control systems : 10.7.1. Make a Copy
- RS variable : 7.7. System Variables
- regular expression for
- 11.2.1.6. Regular expression record separators (gawk and mawk)
- 11.3.2.1. Tawk language extensions
- RT variable (gawk) : 11.2.3.5. Regular expression record terminators
- rules, pattern-matching : (see pattern matching)
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