[SOLVED] Unsure of this array

Issue

I'm trying to understand some code. There is a Array declared called "Choices" which is used in a in a function called SetChoices. Then this function is called later on, with this

 SetChoices "${@//\\//}"

I'm not clear on what this is doing.

Thanks in advance

Solution

Syntax ${var/pattern/string} is pattern substitution on shell variable.

If we run following script:

x="ABCfooDEF"
echo "${x/foo/bar}"

The output will be ABCbarDEF.

$@ - this means all arguments, so ${@//\\//} means:
in @ replace all \ (in script is \\, because it's escaped backslash) with /.

Answered By - Jorengarenar

Answer Checked By - Cary Denson (WPSolving Admin)