Split string on a backslash (“\”) delimiter in awk?

Question

I am trying to split the string in a file based on some delimiter.But I am not able to achieve it correctly... Here is my code below.

awk \'var=split($2,arr,         


        

Answer 1

awk '{sub(/123\\/,"")}1' file

Col1 Col2
abc  abc
abcd abcd