BASH Programming Training Course

The Simplest Script for Government

Selecting the Shell (Magic Number #!, Sha-bang) for Government

Executing the Script for Government

External and Built-in Commands for Government

Special Characters for Government

• Comment (#)
• End of Line (;)
• An Empty Statement (:) for Government
• Redirection of Input and Output (>, <, >>) for Government
• Redirecting Output for Government
• Redirection of Input for Government
• Pipeline (|) for Government
• Running a Process in the Background (&) for Government

Variables and Parameters for Government

• Unsetting Variables (unset) for Government
• Variable with a Null Value for Government
• Saving the Result to a Variable (backquotes ``) for Government
• Parameter Access ($0, $#, $1, $2, $3...) for Government
• Manual Shift for Government
• Quoting for Government
• Escape Character (\) for Government

Regular Expressions for Government

Conditional Statements for Government

• The if / then Statement for Government
• The if / then / else Statement for Government
• Nested if Statements for Government
• The if / elif Statement for Government
• The case Statement for Government
• Logical Operators (&&, ||) for Government
• The test Command for Government

Script Termination for Government

The exit Statement for Government

Using the Exit Status of a Program in a Script ($?) for Government

Tests and Operators for Government

• Text File Operators for Government
• File Type Tests for Government
• File Attribute Tests for Government

Comparison Operators for Government

• Arithmetic Comparison Using the if Command for Government
• Integer Comparison Operators for Government
• String Comparison for Government
• Complex Comparisons (and, or) for Government
• Nested Comparison Operators for Government
• The Assignment Operator for Government
• Arithmetic Operators for Government
• Bitwise Operators for Government
• Logical Operators for Government
• Numeric Constants for Government

Loops for Government

• The for / in Loop for Government
• The seq Command for Government
• The while Loop for Government
• The until Loop for Government
• Controlling Loops (break, continue) for Government

Text Processing for Government

• The head and tail Commands for Government
• Sort, Uniq, Expand, Unexpand for Government
• Cut, Paste, Join, Wc, Tr for Government

Text Search (grep) for Government

Stream Editor (sed) for Government

Interactive Programs for Government

• The read Command for Government
• User Selection for Government

Features for Government

Sleep Command for Government

Debugging Scripts for Government (if the script does not work?)