Hi Everybody,
I am trying to write a script that will get some perticuler data from a file and redirect to a file.
My Question is,
I have a Very huge file,In that file I have my required data is started from 25th line and it will ends in 100th line.
I know the line numbers, I need to get all the data started from 25th line to 100th line. How to do that with Shell script?
sed -n 25,100p file
Or may be:
sed -n 25,100p\;101q file
If you have a very huge file this is an awk variation of the 2nd sed solution of radoulov:
awk 'NR>100{exit}NR>24' file
cat filename.dat | head -100 | tail -75 >> newfilename.dat
or
you can do by using awk also
awk 'NR==25,NR==100' filename.dat >> newfilename.dat
caught you 
cat filename.dat | head -100 | tail -75 >> newfilename.dat
UUOC
Well, what about reading a part of the line? I tried this:
sed '/exp1/,/exp2/p' text.txt
But it returned whole file.
try this:
head -100 filename | tail -75
try
head -100 file | tail -75 > outfile
sed -n 1,100 file1 > file2
sed -n '1,100p' file1 > file2