Sponsored Content
Top Forums Shell Programming and Scripting How to delete all lines before a particular pattern when the pattern is defined in a variable? Post 303004034 by Soham on Monday 25th of September 2017 03:11:04 PM
Old 09-25-2017
Thx.. But this will not work. Lines are not just 'Line 1'. They contains some more text a;so. And I need to delete all lines before the last occurrence.

I could not construct a simple sed or awk script.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to delete lines do NOT match a pattern

On Unix, it is easy to get those lines that match a pattern, by grep pattern file or those lines that do not, by grep -v pattern file but I am editing a file on Windows with Ultraedit. Ultraedit support regular expression based search and replace. I can delete all the lines that match a... (1 Reply)
Discussion started by: JumboGeng
1 Replies

2. Shell Programming and Scripting

delete lines in file matching a pattern

I have a text file, a sample of which is as follows: r/- * 0: WINDOWS/Microsoft.NET/Framework/v2.0.50727/ASP.NETWebAdminFiles/Images/headerGRADIENT_Tall.gif r/- * 0: WINDOWS/SoftwareDistribution/Download/cf8ec753e88561d2ddb53e183dc05c3e/backoff.jpg r/- * 0: ... (2 Replies)
Discussion started by: stumpyuk
2 Replies

3. Shell Programming and Scripting

Delete Lines between the pattern

Hi All, Below is my requirement. Whatever coming in between ' ', needs to delete. Input File Contents: ============== This is nice 'boy' This 'is bad boy.' Got it Expected Output =========== This is nice This Got it (4 Replies)
Discussion started by: susau_79
4 Replies

4. Shell Programming and Scripting

search the pattern in a file and replace with variable already defined previously in csh

I want to replace a certain pattern with the variable already defined. e.g. set path_verilog = /home/priya/bin/verilogfile my file contents are : verilog new verilog is defined here verilog_path_comes I am using the below command sed 's/verilog_path_comes/'$path_verilog'/g' <filename>... (2 Replies)
Discussion started by: nehashine
2 Replies

5. Shell Programming and Scripting

sed pattern to delete lines containing a pattern, except the first occurance

Hello sed gurus. I am using ksh on Sun and have a file created by concatenating several other files. All files contain header rows. I just need to keep the first occurrence and remove all other header rows. header for file 1111 2222 3333 header for file 1111 2222 3333 header for file... (8 Replies)
Discussion started by: gary_w
8 Replies

6. Shell Programming and Scripting

delete lines starting with a pattern

i have a file sample.txt containing i want to delete lines starting with 123 neglecting spaces and tabs. but not lines containing 123. i.e. i want files sample.txt as help me thanxx (4 Replies)
Discussion started by: yashwantkumar
4 Replies

7. Shell Programming and Scripting

Print/delete the lines between two pattern.

Hello, I am having hard time figuring out how to print/delete the lines between two pattern. Here is the part of the file nastran1.bdf: RBE3 48729 32232 123456 0.30000 123 59786 59787 60114 RBE3 48732 1330 123 0.30000 123 10107... (4 Replies)
Discussion started by: dragomir
4 Replies

8. Shell Programming and Scripting

Delete lines and the first pattern between 2 matched patterns

Hi, i need help to delete all the lines between 2 matched patterns and the first pattern must be deleted too. sample as follows: inputfile.txt >kump_1 ........................... ........................... >start_0124 dgfhghgfh fgfdgfh fdgfdh >kump_2 ............................. (7 Replies)
Discussion started by: redse171
7 Replies

9. Shell Programming and Scripting

sed -- Find pattern -- print remainder -- plus lines up to pattern -- Minus pattern

The intended result should be : PDF converters 'empty line' gpdftext and pdftotext?xml version="1.0"?> xml:space="preserve"><note-content version="0.1" xmlns:/tomboy/link" xmlns:size="http://beatniksoftware.com/tomboy/size">PDF converters gpdftext and pdftotext</note-content>... (9 Replies)
Discussion started by: Klasform
9 Replies

10. UNIX for Beginners Questions & Answers

Delete duplicate like pattern lines

Hi I need to delete duplicate like pattern lines from a text file containing 2 duplicates only (one being subset of the other) using sed or awk preferably. Input: FM:Chicago:Development FM:Chicago:Development:Score SR:Cary:Testing:Testcases PM:Newyork:Scripting PM:Newyork:Scripting:Audit... (6 Replies)
Discussion started by: tech_frk
6 Replies
IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
All times are GMT -4. The time now is 05:51 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy