What is the difference between & # 8594; result = $ (ls -l) (or) & # 8594; result = `ls -l`

Question

I run both commands, and they both seem to be doing the same thing, is it true or is something happening that I don’t see?

These two seem to do the exact same thing:

result=$(ls -l)   
result=`ls -l`

Answer 1

Please check http://nixcraft.com/shell-scripting/13288-loop-input-backticks-vs-differences.html#post19804 for a nice explanation of this case.

Answer 2

The bash man page states the following: Command submenu.

, , $, `. backquote, -stitution. $(), ; .

. , .

- sh man:

• bash
• osx
• bsd