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Index: E
- e (constant) : 9.1.1. Trigonometric Functions
- -e option (sed)
- 2.3.1. Specifying Simple Instructions
- 2.3.2.3. Mixing options (POSIX)
- ed editor : 2. Understanding Basic Operations
- edits, pipelined : 4.4.4. Edits To Go
- egrep program : 3. Understanding Regular Expression Syntax
- else statements : (see if statements)
- end
- of line : (see $ (dollar sign))
- of word : (see \<, \> escape sequences)
- END procedure : 11.1.6. Control Flow
- ENDFILE procedure (tawk) : 11.3.2.1. Tawk language extensions
- "Ending delimiter missing" error : 2.3.1.1. Command garbled
- ENVIRON variable
- 8.6. System Variables That Are Arrays
- 8.6.2. An Array of Environment Variables
- environment variables : 8.6.2. An Array of Environment Variables
- equal sign (=)
- == (equal to) operator : 7.8. Relational and Boolean Operators
- for printing line numbers : 5.9. Print Line Number
- equivalence classes : 3.2.4.3. POSIX character class additions
- EREs (extended regular expressions) : 3.2.4.3. POSIX character class additions
- ERRNO variable (gawk) : 11.2.3.8. Additional variables
- error messages
- 11.2.1.4. Special filenames
- 12.3.4. A Function for Reporting Errors
- awk : 2.4.2. Error Messages
- "command garbled"
- 2.3.1.1. Command garbled
- 5.1. About the Syntax of sed Commands
- sed : 2.3.1.1. Command garbled
- errors
- debugging : 10.7. Debugging
- spelling, finding (example) : 12.1. An Interactive Spelling Checker
- ESC character in vi : 5.6. List
- escape sequences, awk
- 7.6. Expressions
- 11.1.1. Escape Sequences
- B.2.5.2. Escape sequences
- escaping : (see backslash)
- example programs : Sample Programs
- exchange command : (see x command (sed))
- exclamation point (!) : 4.2. A Global Perspective on Addressing
- != (not equal to) operator : 7.8. Relational and Boolean Operators
- !~ (does not match) operator
- 7.5.1. Referencing and Separating Fields
- 7.8. Relational and Boolean Operators
- csh and : 1.4. Four Hurdles to Mastering sed and awk
- logical NOT operator : 7.8. Relational and Boolean Operators
- tilde (~) operator : 7.5.1. Referencing and Separating Fields
- exit statement : 8.3. Other Statements That Affect Flow Control
- exp() : 9.1.1. Trigonometric Functions
- exponentiation
- 7.6. Expressions
- 9.1.1. Trigonometric Functions
- 11.1.2. Exponentiation
- ** operator : 7.6. Expressions
- ^ operator : 7.6. Expressions
- expressions
- 3.1. That's an Expression
- B.2.5. Expressions
- awk : 7.6. Expressions
- executing as commands : 10.3. The system() Function
- regular : (see regular expressions)
- extended regular expressions (EREs) : 3.2.4.3. POSIX character class additions
- extensions
- common awk : 11.2.1. Common Extensions
- gawk : 11.2.3. GNU awk (gawk)
- mawk : 11.2.4. Michael's awk (mawk)
- tawk : 11.3.2. Thompson Automation awk (tawk)
- extent of matching : 3.2.12.1. The extent of the match
- extracting file contents : 4.4.3. Extracting Contents of a File
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