UNIX for Dummies Questions & Answers

Hi All,

I have a sample datafile:

Code:

 
5.1
5.2
0.8
6.1

What I want to do is create an additional 3 rows with the number "0.7". so that I now have:

Code:

 
5.1
5.2
0.8
6.1
0.7
0.7
0.7

Can someone help...thanks

You could create sample2.txt (with vi editor, for instance) which would include
0.7
0.7
0.7

And then

Code:

cat sample.txt sample2.txt

which would display to screen, or

Code:

cat sample.txt sample2.txt >newsample.txt

which writes the combined output to new file called newsample.txt

Code:

echo "0.7
0.7
0.7" >> sample_data_file

Thanks guys.
my problem is a little bit complicated because my datafile contains hundreds of rows, so I couldn't possibly create a blank file and fill it up by hand as suggested by joeyg. But your suggestions have helped in the sense that I've arrived at a solution.

I used the echo command in a loop to get the result I wanted.

Code:

#!/bin/sh
#
echo -n "enter file.. "; read file
for ((i=1; i<=7; i++)); do
echo "0.7" >> $file
done
exit

thanks guys!