How to delete several lines from file by line number?

Shell Programming and Scripting
1

Hi
I am using the following command to delete a line from the file by line number:

line_number=14
sed "${line_number}d"  inputfilename > newfilename

Is there a way to modify this command to specify the range of lines to be deleted, lets say from line 14 till line 5 ?

I tried using the while loop but execution takes too long.
Thanks a lot

2

Maybe ex editor can aid you in such task see here

3

See if this works for you:

line_From=14
line_To=17
sed "${line_From},${line_To}d"  inputfilename > newfilename
4

sed 'linenumber, +countd' filename

$ cat t.txt 
1
2
3
4
5
6
7
8
9
10
$ sed '4,+2d' t.txt 
1
2
3
7
8
9
10
5

Try below code

sed '5,14d' inputfilename > newfilename

Cheers
Harish

6

Thanks a lot guys