Why is it not required to double quote `$bar` in assignment `foo=$bar`?
112400
Are quotes needed for local variable assignment?
48321
What do single quotes do in C++ when used on multiple characters?
72519
What's the difference between "==" and "=~"?
120372
How to typeset $:=$ correctly?
28353
On what systems is //foo/bar different from /foo/bar?
142924
Why allow concatenation of string literals?
158457
Using | pipe character from a $variable makes it treat as just another argument in bash; how to escape it?
148080
Brace expansion with a Bash variable - {0..$foo}
19212
When do extra parentheses have an effect, other than on operator precedence?
55502
Double vs single quotes
148300
Why $0 is not a positional parameter?
89858
How to pass a literal variable reference (${foo}) as program argument in a run configuration
128255
Empty Strings: Why or when is '' equal to ' '?
13586
Why do regex constructors need to be double escaped?
82209
Bash "for" loop without a "in foo bar..." part
53710
Quoting in a function results in error
94418
Where do we use the object operator "->" in PHP?