Usage example of let expression in bash
111221
Parenthesis in expr arithmetic: 3 * (2 + 1)
38607
Variable substitution with an exclamation mark in bash
41578
How to iterate over arguments in a Bash script
110007
What is the difference between operator "=" and "==" in Bash?
120214
What's the difference between <<, <<< and < < in bash?
104821
How do I use a temporary environment variable in a bash for loop?
4016
How do optional Parameters in Let/Get Properties work?
96938
What's the difference between using > and >> in shell?
9976
What is "declare" in Bash?
79345
Why does "cat {foo}" not output foo, but "cat {foo,bar}" does?
59166
When to wrap quotes around a shell variable?
93594
how does do{} while(0) work in macro?
137387
Which bash will expand  {1..$VAR} in the same way that zsh does
53871
Where are bash line continuations after && and || documented?
108795
How to use a variable's value as another variable's name in bash
30195
What's the difference between [ and [[ in Bash?
65125
Bash Brace Expansion & Variables