Introduction
Welcome
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What you should know
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Using the exercise files
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1. Intro to Bash Scripting
Exploring the Bash documentation
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Setting the script interpreter and permissions
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Time commands and set variables
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Bash startup
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Sourcing and aliasing with bash
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Displaying text with the echo command
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Challenges: Scripts with exported variables, sourcing, and echo
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Solutions: Scripts with exported variables, sourcing, and echo
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2. Variables, Control Structures, and Arithmetic
The typeset and declare commands for variables
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Looping with for/while sequences and reading input
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Defining functions and using return and exit
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Using file descriptors, file redirection, pipes, and here documents
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Control-flow case statements and if-then-else with the test command
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Using arithmetic operators
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Challenges: Using local variables in functions, loops, and arithmetic
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Solutions: Using local variables in functions, loops, and arithmetic
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3. Using Filters and Parameter Expansion
Defining filters and using head, tail, and wc
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Using sed and AWK for more powerful scripting
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Positional parameters and operators with braces
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Challenges: Looping, special variable operators, sed, and AWK
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Solutions: Looping, special variable operators, sed, and AWK
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4. Advanced Bash
Using the coproc command
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Debugging scripts with -x and -u options
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Signals and traps
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Using the eval and getopt commands
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Challenges: Debugging scripts using trap, eval, getopt, and coproc
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Solutions: Debugging scripts using trap, eval, getopt, and coproc
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Ex_Files_Linux_BashShell.zip
(21 KB)