Liked this course and looking for more? Please visit our refreshed and improved 4-hr Bash Boot Camp Course here: https://linux-hint.teachable.com/p/4-hour-bash-boot-camp-by-linuxhint-com **(TIMELINE - 1)** Simple Hello World Script 00:00:35 Echo Command Without Newlines 00:04:20 String Concatenation With Echo 00:06:13 String Continuation Character 00:07:40 Echo with Tab Characters 00:09:12 Echo with Newline Characters 00:11:12 Echo with -x to Display All Commands 00:12:30 Printing Strings That Contain Single Quotes 00:14:46 Printing Strings That Contain Double Quotes 00:16:00 Write to a File from Inside A Script 00:18:07 Overwrite to a File from Inside A Script 00:20:04 Append to File Inside Script 00:21:41 Single Line Comments 00:23:40 Comments From Middle of Line 00:25:45 Multi Line Comments Using Heredocs 00:27:56 Simple Variable Usage 00:30:16 Multi Word Variables Combinations with Quotes 00:32:27 HOME variable 00:35:28 USER variable 00:38:16 HOSTNAME variable 00:39:24 Echo $HOME with Escape to Avoid Expansion 00:40:16 Writing to file in HOME Directory Using HOME Environment Variable 00:41:34 Simple Touch Command 00:44:47 Create a Symbol Link, Write To Linked File, Cat file 00:46:57 Chmod Command, Make Executable 00:50:40 Chmod Command, Make Not-Writable, Try to Write to it 00:53:29 Chown File To Different User, Run ls before, after 00:56:44 Underscore Variable, Touch File, Use Underscore Variable to Append to It 00:59:59 Let Command Arithmetic 01:03:42 4 Basic Operators, Add, Subtract, Multiply, Divide 01:05:13 Increment a variable 3 times with Increment Operator 01:07:56 Decrement a variable 3 times with Decrement Operator 01:10:34 Echo Number Modulus Second Number 01:12:36 Echo Number to Exponent of Second Number 01:14:50 Expr Command for Math 01:16:17 Double Parenthesis for Math 01:19:14 Double Parenthesis with Dollar Operator Assign to Variable 01:21:40 Multiplication has Precedence Over Addition Regardless of Order 01:23:43 Combine Two Strings In One Line With Variables 01:25:49 Combine Three Strings In One Line With Variables 01:29:09 Plus Equal Operator Combine Strings 01:31:24 Create Multi-Line String Variable with HEREDOC 01:34:38 Cat Multi-Line HEREDOC Text 01:37:04 If Conditional Statement 01:39:43 Logical And in Conditional Statement 01:43:00 Logical Or in Conditional Statement 01:46:53 If Elif Else Conditional Statement 01:51:29 Nesting If Conditions 01:58:28 Equal vs Double Equal Operator 02:01:36 Test Not Equal Strings 02:05:03 Test Two Strings Before or After alphabetically 2:06:33 Test String is Null 02:08:07 Test String is Not-Null 02:09:30 Test Numerical Comparisons Greater then, Less then 02:10:39 Test Numerical Compare Greater Then Or Equal, Less Than Or Equal 02:12:58 Test Compare Numbers Are Equal 02:15:02 Test Compare Numbers Are Not-equal 02:19:16 Test File Exists 02:19:15 Test File Is Not Zero Size 02:21:10 Test File Is A Directory 02:22:43 File Is A Symbolic Link 02:24:22 Test File Has Read Permission 02:26:18 Test File Has Write Permission 02:27:35 Test File Has Execute Permission 2:28:57 #bash #bashscripting