Need to remove few characters from each line till a pattern is matched

Hi All,

I want to remove first few characthers from starting of the line till ',' Comma... which needs to be done for all the lines in the file

Eg:

File content

1,"1234",emp1,1234
2,"2345",emp2,2345

Expected output is

,"1234",emp1,1234
,"2345",emp2,2345

How can parse the file in the above manner using a shell scripts.. which command will be good to chose. How this can be achieved.

sed 's/^[^,]*//' <file>

tyler_durden

Or:

sed 's/^.//' file

may need to change to take care of more characters before the comma

@OP, awk

awk -F"," '{$1=""}1' OFS="," file

I used the below code