Topics

• Getting started with Bash
• Using "trap" to react to signals and system events
• Redirection
• Control Structures
• Using cat
• View the Manual Pages
• Arrays
• Functions
• std::string
• Bash Parameter Expansion
• Find
• Here documents and here strings
• Quoting
• Conditional Expressions
• Scripting with Parameters
• Exceptions
• Implementation-defined behavior
• std::optional
• Shell
• Customizing PS1
• Pattern matching and regular expressions
• Compiling and Building
• Internal variables
• Word splitting
• Read a file (data stream, variable) line-by-line (and/or field-by-field)?
• Pipelines
• Managing PATH environment variable
• Build Systems

Examples

• Hello World Using Variables
• Hello World
• Compiling with GCC
• Printing the Contents of a File
• Array Assignments
• Accessing Array Elements
• String replacement
• Searching for a file by name or extension
• Finding file by access / modification time
• Tokenize
• Accumulate a list of trap work to run at exit.
• Trimming characters at start/end
• Array Length
• Array Modification
• Size of integral types
• Looping through an array
• Delete a pattern from the beginning of a string
• Delete a pattern from the end of a string
• Replace pattern in string
• Get the File Path for a Manual Page
• Changing default shell
• Looping over an array
• Loop break
• Return value from a function
• Using optionals to represent the absence of a value
• Write to a file
• Difference between double quote and single quote
• Checking if a string is a prefix of another
• Converting to std::string
• Test on exit status of a command
• One liner test
• Number of bits in a byte
• Splitting with IFS
• Reads file (/etc/passwd) line by line and field by field
• Finding files according to size
• Bash internal variables at a glance
• $IFS
• $1 $2 $3 etc...
• $*
• $_
• $@
• Execute command with here document
• Run several commands with sudo
• What, when and Why?
• IFS & word splitting
• Bad effects of word splitting
• Usefulness of word splitting
• Read lines of a file into an array
• Looping through a file line by line
• Read lines of a string into an array
• Looping through a string line by line
• Looping through the output of a command line by line
• Read a file field by field
• Read a string field by field
• Read fields of a file into an array
• Read fields of a string into an array
• Looping through the output of a command field by field
• Regex matching
• Argument parsing using a for loop
• Wrapper script
• Show git branch name in terminal prompt
• Show time in terminal prompt
• Colorize and customize terminal prompt
• Splitting by separator changes
• Print the function definition
• Modify continuous output of a command
• Array insert function
• Add a path to the PATH environment variable
• Remove a path from the PATH environment variable
• Print error messages to stderr
• Read a manual file with man
• Custom exception