Shell Programming and Scripting

Hi All,

How to read a file upto last line(End Of Line)
I wrote below program:

cat R2_20060719.610.txt | while read LINE
do
echo "$LINE"
done

above code reading all lines from a file and skipping last line......
is there anything wrong in my code.

Please help me out from this problem. it's little bit urgent.

Regards,
Ravi Kumar Garlapati

Code:

cat R2_20060719.610.txt | while read LINE
do
echo "$LINE"
done

or preferably

Code:

while read LINE
do
echo "$LINE"
done <R2_20060719.610.txt

Will not skip the last line, it will in effect behave exactly like the cat command. There are a number of ways you could aciehve the desired results. The simplest of which is probably to store the value of LINE in another variable, and print that value in the next iteration through the while loop.

Hi reborg,

thank you for quick reply,

below one is data file:

R2_20060719.610.txt
--------------------
Dividend EventID IssID SecID Created
DIV 170334 3085 3225 2006/06/10
DIV 7034 305 325 2006/06/10 2006/06/12
DIV 3333 30333 325 2006/06/10 2006/06/12

if i use ur code to loop this data

while read LINE
do
echo "$LINE"
done <R2_20060719.610.txt

i am getting output as

Dividend EventID IssID SecID Created
DIV 170334 3085 3225 2006/06/10
DIV 7034 305 325 2006/06/10 2006/06/12

it's skipping last line.

if i use below code

while read LINE
do
echo "$LINE"
done <R2_20060719.610.txt
echo "$LINE"


it's giving me all lines as output including last line.

but my requirement is not that....
within the loop itself i should be able to echo all lines including last line.
there should not be any code outside loop.

Hope this is clear.

Regards,
Ravi Kumar Garlapati

Can you post the output of 'uname -n' and 'echo $0' commands? The code snippet posted by reborg should not be skipping any lines from the file at all...

Hi blowtorch,

Below are the outputs of ur two commands:

uname -n --> ndafedt1
echo $0 --> -ksh

Regards,
Ravi Kumar Garlapati

Oh, sorry, I meant 'uname -a'. Anyway, with ksh you shouldn't be getting such an output. All lines should be printed. Can you just run 'cat -v' on the file and see if any chars are present that shouldn't be there?

Hi blowtorch,

uname -a output is SunOS ndafedt1 5.8 Generic_108528-15 sun4u sparc SUNW,Ultra-Enterprise

when i say cat -v <file name>
it's displaying all lines without any problem(without special or unwanted charecters), displying last line aswell.

again if i try to run below code :

while read LINE
do
echo "$LINE"
done <R2_20060719.610.txt

i am facing the same problem, i.e., skipping the last line.

Regards,
Ravi Kumar Garlapati