Finding EOL char is there or not in a big size file

Shell Programming and Scripting
1

Hi,

I am using ksh.

I have to find wether data file has EOL or not. as per my knowledge we can easily find by checking each character. But this is a tedious job as per my requirement because my data file size is very big . It may be in 25-30 MB.
So please advice me how i can check wether data file has EOL or not.

Thanks in advance

2

If you want to check every line, you gonne have to parse the whole file,
or do you only want to check the first or last line ?

3

i only want to check end of line

4

I think you mix two things.
There is a EOL at the end of each line and there is something like EOF (end of file).
As far as i understand, you mean the EOF character, is this so ?

5

grep -q 'character goes here' bigfile

Unix doesn't have an EOF character, and EOF condition for a file, yes.
EOL can mean a newline \n - but since the OP asked for EOL instead of newline, I don't know what is meant. I guess '\n'