What is the difference between a.b and a$b, please?
41159
Java class name containing dollar sign fails to compile if an inner class is present
145679
What's the difference between "$\to$" (implication) and "$\vdash$" (therefore)?
34625
What is the difference between $* and $@?
120214
What's the difference between <<, <<< and < < in bash?
84199
What does the $\|$ operation mean in cryptographic notation?
11423
Understand the meaning of `$_`
23092
What does "$$" mean in the shell?
62770
Does $a\mid bc$ imply $a\mid b$ or $a\mid c$?
141279
Is there a difference between  and ?
156541
$a^b > b^a$ or $a^b b$ where $a,b$ are positive real numbers
11509
Relationship between $\operatorname{ord}(ab), \operatorname{ord}(a)$, and $\operatorname{ord}(b)$
134050
Question about set notation: what does $]a,b[$ mean?
110711
Difference between "per" and "a"
55373
The difference between 0. and 0
141961
What is the difference between [[ $a == z* ]] and [ $a == z* ]?
62633
Why doesn't a+++++b work?
32180
Why is "$A$ unless $B$" equivalent to $A \lor B$?