Getting started

Using trap to react to signals and system events

Jobs and processes

Control structures

Bash Parameter Expansion

Here documents and here strings

Conditional Expressions

Scripting with parameters

History substitutions

Process substitution

Programmable completion

Customizing PS1

Brace Expansion

Bash Arithmetic

getopts smart positional-parameter parsing

Pattern matching and regular expressions

Keyboard shortcuts

Copying with cp

Internal variables

Internal variables

Bash internal variables at a glance

SECONDS

File transfer with scp

Managing PATH environment variable

Avoiding date using printf

Chain of commands and operations

true, false and commands

Color script output cross-platform

Navigating directories

Typing variables

Jobs at specific types

Associative arrays

Handling the system prompt

Creating directories

File execution sequence

The cut command

Bash on Windows 10

Splitting files

Global and local variables

Design Patterns

When to use eval

Networking with bash

SECONDS

The number of seconds a script has been running. This can get quite large if shown in the shell:

~> $ echo $SECONDS
98834

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Table Of Contents

1 Getting started

2 Using trap to react to signals and system events

3 Listing files

5 Jobs and processes

7 Control structures

11 Bash Parameter Expansion

13 Find

14 Here documents and here strings

16 Conditional Expressions

17 Scripting with parameters

18 History substitutions

19 Math

21 Process substitution

22 Programmable completion

23 Customizing PS1

24 Brace Expansion

25 Bash Arithmetic

26 getopts smart positional-parameter parsing

29 Script shebang

30 Pattern matching and regular expressions

31 Keyboard shortcuts

32 Change shell

33 Copying with cp

34 Internal variables

36 Case statement

37 Word splitting

39 File transfer with scp

41 Managing PATH environment variable

42 Avoiding date using printf

43 Chain of commands and operations

44 Type of shells

45 true, false and commands

46 Color script output cross-platform

47 Navigating directories

50 co-processes

51 Typing variables

52 Jobs at specific types

53 Associative arrays

54 Handling the system prompt

55 Creating directories

56 File execution sequence

57 The cut command

58 Bash on Windows 10

60 Splitting files

61 Global and local variables

62 Design Patterns

64 Select keyword

65 When to use eval

66 Networking with bash

68 Grep

72 Contributors