Difference between 2>&1  and  2>&1
832
What are the shell's control and redirection operators?
83756
What's the difference betwen " and ' - and when to use it?
87375
Difference between [0-9], [[:digit:]] and \d
157005
What does the ampersand indicate in this bash command 1>&2
69775
Why redirect output to 2>&1 and 1>&2?
72519
What's the difference between "==" and "=~"?
45656
What's the difference between semicolon and double ampersand &&
97398
Is < faster than <=?
132176
Precedence of && over ||
38401
When should I use  or >()?
57332
!! c operator, is a two NOT?
134951
What is the difference between > and >> (especially as it relates to use with the cat program)?
110165
What is "x && foo()"?
98308
difference between \prime and `'` in math mode
145840
What does "3>&1 1>&2 2>&3" do in a script?
96940
C# - | and & operators?
94810
Using "respectively" with "and" vs. "or"