Deleting lines inside a file without opening the file


Login or Register for Dates, Times and to Reply

 
Thread Tools Search this Thread
# 1  
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  
use sed

you can try this ...

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

# 4  
Bug Thanks

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

Toms
Login or Register for Dates, Times and to Reply

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #290
Difficulty: Easy
Free and open-source software (FOSS) is software that anyone is freely licensed to use, copy, study, and change the software in any way, and but the source code must be maintained secretly.
True or False?

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

Featured Tech Videos