Finding the second last column value from a text file

Shell Programming and Scripting
1

Can any one tell me how to get the second last column value from the text file, which has different record size for each record.

I know how to get the last column using awk and print statements, but I am unable to get the second last column value from the file.

2 
awk 'NR==2{print $NF}' file_name

it show the 2nd columns last value.. sorry :confused:

3 
 awk '{x=NF-1;print $x}' filename
4 
awk '{print $(NF-1)}' file
5

thanks to all of you, the 2nd & 3rd giving the correct output but the 1st one still gave the last column value.