appending data using sed

[linux_newbie79]

Hi,

I have one file with data in the following order
0x12
0x23
0x34
0x45

I need to append ',' (i.e Comma) at the end of each line.
How to do it using sed?

can anyone please guide me?

[burschik]

sed 's/$/,/' input_file

[linux_newbie79]

Hi,
Thanks for your mail.
If I create a file in Vi editor and execute the above command it works. But If i create .txt file in windows and try this command ","(Comma) is placed at the beginning.

My understanding is $ represents end of line. But why in .txt it is in the beginning?

[linux_newbie79]

Hi ,
Thanks. I found the cause. it is due to ^M