Login or Register to Ask a Question and Join Our Community


Deleting lines inside a file without opening the file


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Deleting lines inside a file without opening the file
# 1  
Old 09-21-2007
Deleting lines inside a file without opening the file

Hi,

Just consider there are around 10 lines in a file. Now is it possible to delete the first 2 lines in the file without opening the file. No matter whatever the content of the file is, I just wanna delete the first 2 lines without opening the file. Is that possible? If so, please help me out.

Thanks,
Toms
# 2  
Old 09-21-2007
use sed

you can try this ...

sed -n '1,2!p' filea > file2 ; mv file2 file1
# 3  
Old 09-21-2007
Code:
sed -i '1,2d' file

# 4  
Old 09-24-2007
Bug Thanks

Thanks!!! Both the options are working fine....

Toms
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Deleting lines of a file if they exist in another file

I have a reference file that needs to remain static and another file that may or may not have duplicate rows that match the reference file. I need help with a command that will delete any duplicate rows from the second file while leaving reference file intact For example reference file would... (4 Replies)
Discussion started by: bjdamon
4 Replies

2. Shell Programming and Scripting

Deleting lines from file using another file

Hi All, Need your Help. when i tried deleting lines from one file using another file i got this below error: $ sed "s/\(.*\)/\/^&$\/d/" a.txt > x.tmp $ sed -f x.tmp b.txt > target.txt sed: 0602-405 There are too many commands for the /^111111|.12|.00$/d function. a.txt: 111111|.11|.00... (5 Replies)
Discussion started by: HemaV
5 Replies

3. Shell Programming and Scripting

deleting lines in a file that match a pattern without opening it

In Unix, how do I delete lines in a file that match a particular pattern without opening it. File contents are foo line1 misc whatever foo line 2 i want to delete all lines that have the pattern "foo" without opening the file. File should eventually contain misc whatever (1 Reply)
Discussion started by: osbourneric
1 Replies

4. Shell Programming and Scripting

Opening File names with spaces inside it !- PERL

I developed a perl code..And the excerpt from it is given below... open(HANDLE,$cmp_path) ; #reading the xml file from the file path while($file_path = <HANDLE>) I have list of XML files to read from a folder. It has some spaces inside the name of the file...I used "\"... (2 Replies)
Discussion started by: gameboy87
2 Replies

5. Shell Programming and Scripting

deleting lines from file

We have a server that logs transactions to a file. I want to write a script that will delete the first 50 lines of the file daily without renameing the file or moving the file. (8 Replies)
Discussion started by: daveisme
8 Replies

6. UNIX for Advanced & Expert Users

Deleting lines from a file

How I can delete 100 lines anywhere in a file without opening a file and without renaming the file. (11 Replies)
Discussion started by: Nirgude07
11 Replies

7. UNIX for Dummies Questions & Answers

Deleting whole lines from a file

I have a file with 65 sets of 35 coordinates, and would like to isolate these coordinates so that I can easily copy the coordinates to another file. The problem is, I've got a 9 line header before each set of coordinates (so each set is 44 lines long). There are a zillion threads out there about... (3 Replies)
Discussion started by: red baron
3 Replies

8. Shell Programming and Scripting

Deleting lines in a file

How do I delete all the lines after the line containing text ***DISCLOSURES*** . I want to delete this line too. Thank you (2 Replies)
Discussion started by: reachsamir
2 Replies

9. Shell Programming and Scripting

Deleting last 2 lines from the file.

Hi I have a file & always I need to remove or delete last 2 lines from that file. So in a file if I have 10 lines then it should return me first 8 lines. Can someone help me? (4 Replies)
Discussion started by: videsh77
4 Replies

10. Shell Programming and Scripting

Urgent help required in deleting a line without opening a file usinga shell script

Hi, I need a help in deleting a line matching a particular pattern in a file using shell script without opening the file. The file is a .c/.cpp file. Is it possible? Thanks (6 Replies)
Discussion started by: naan
6 Replies
Login or Register to Ask a Question

Featured Tech Videos