Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Delete all lines after a specific line ?

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Delete all lines after a specific line ?
# 1  
Old 11-16-2010
Tools Delete all lines after a specific line ?
Hello.
My file is like this:
a
b
c
d
e
f
g
h
i
I want to delete all lines after the 3rd line, means after the "c". Is there any way to do this? The lines differ between them and the lines I want to delete does not have a specific word, or the lines I want to keep (a,b,c) does not have a common word. So, I basicly need to delete all the lines from this file except the 3 first. Smilie I bet you got it
# 2  
Old 11-16-2010
Code:
sed '4,$d' filename

This User Gave Thanks to Chubler_XL For This Post:
hakermania
# 3  
Old 11-16-2010
Have a read of this:

Man Page for head (POSIX Section 1) - The UNIX and Linux Forums
This User Gave Thanks to Franklin52 For This Post:
hakermania
# 4  
Old 11-16-2010
Code:
head -3 filename

This User Gave Thanks to Chubler_XL For This Post:
hakermania
# 5  
Old 11-16-2010
Thank you both.

---------- Post updated at 12:41 PM ---------- Previous update was at 12:41 PM ----------

EDIT: Thank you all.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Delete lines above and below specific line of text

I'm trying to remove a specific number of lines, above and below a specific line of text, highlighted in red: <STMTTRN> <TRNTYPE>CREDIT <DTPOSTED>20151205000001 <TRNAMT>10 <FITID>667800001 <CHECKNUM>667800001 <MEMO>BALANCE </STMTTRN> <STMTTRN> <TRNTYPE>DEBIT <DTPOSTED>20151207000001... (8 Replies)
Discussion started by: bomsom
8 Replies

2. Shell Programming and Scripting

Delete lines that contain a pattern from specific line to the end.

Gents, I am trying to delete all lines which start with "H" character, but keeping the fist header. Example In the input file I will delete all lines starting from line 8 which contents character "H" to the end of the file. I try sed '8,10000{/^H/d;}' file But as don't know the end... (1 Reply)
Discussion started by: jiam912
1 Replies

3. Shell Programming and Scripting

How to delete lines starting with specific string?

Dear all, I would like to delete even lines starting with "N" together with their respective titles which are actually odd lines. Below is the example of input file. I would like to remove line 8 and 12 together with its title line, i.e., line 7 and 11, respectively.... (2 Replies)
Discussion started by: huiyee1
2 Replies

4. UNIX for Dummies Questions & Answers

How to delete specific lines (2n+3 line, n=0,1,2...296) in a file?

Dear everyone, I have a file with 900 lines (there is only numbers in one line, no string), I only need the lines 2+3n (n=0,1...296), i.e line 2, 5, 8, 11...888. I tried google but only the results such as how to delete all the odd lines or all the even lines with 'awk' command. Thanks in... (4 Replies)
Discussion started by: phamnu
4 Replies

5. Shell Programming and Scripting

A way to delete specific lines

Hi all, I hope an expert tells me that there is a way to get ride of the certain lines in my files which have no specific string on them but fixed length. It's the original pattern:... (9 Replies)
Discussion started by: GoldenFire
9 Replies

6. Shell Programming and Scripting

How to delete all lines before a specific word?

Let's say we have a file containing: alllllsadfsdasdf qwdDDDaassss ccxxcxc#2222 dssSSSSddDDDD D1Sqn2NYOHgTI Hello Alex ssS@3 Ok, and let's say we want to delete all words from D1Sqn2NYOHgTI and back, this means to delete the words (and the lines of them) : alllllsadfsdasdf... (2 Replies)
Discussion started by: hakermania
2 Replies

7. Shell Programming and Scripting

Delete specific lines from a file

Hi, I have a file ( all_users.ldif ) of the following format: cn=orcladmin, cn=Users, dc=maximus,dc=com cn=PUBLIC, cn=Users, dc=maximus,dc=com cn=portal,cn=users,dc=maximus,dc=com cn=portal_admin,cn=users,dc=maximus,dc=com cn=uddi_publisher,cn=Users,dc=maximus,dc=com... (4 Replies)
Discussion started by: itzz.me
4 Replies

8. Shell Programming and Scripting

delete lines containing a specific word in afile

Hi, Please suggest how to write a shell script which delets all the lines containing the word unix in the files supplied as argument in the shell. (4 Replies)
Discussion started by: sireesha9
4 Replies

9. UNIX for Advanced & Expert Users

How to delete specific lines at the same time

Dear All I have a pattern which look like this: 2 20080312_10:55:35.800 Spain-Telefonica ISC 9 IAM 927535957 34670505334 f 275 COT b 700 ACM b 6577 CPG b 10726 ANM b 202195 REL f 202307 RLC :COMMA: NCI=15,FCI=2101,CPC=0A,TMR=00,USI,OFI=00: :COMMB: BCI=0214,OBI=01,ACT: :RELCAUSE:10: This... (1 Reply)
Discussion started by: zanetti321
1 Replies

10. Programming

Delete specific lines in a text file

Hi, experts, I would like to create a function that can calculate the total number of lines in a saved text file and delete specific lines in that particular file (I only want the last few lines). Hav anybody have the experience and giv me a hand in this? (9 Replies)
Discussion started by: dniz
9 Replies
Login or Register to Ask a Question