1. UNIX for Dummies Questions & Answers

Hi , I have a peculiar case, where my sed command is working on a file which contains lines of small length. sed "s/XYZ:1/XYZ:3/g" abc.txt > xyz.txt when abc.txt contains lines of small length(currently around 80 chars) , this sed command is working fine. when abc.txt contains lines of... (3 Replies)

2. Shell Programming and Scripting

Hi, I've been searching in this forum for the last 4 hours trying to do one thing: search 2 lines and delete the above line. So far I have not be able to find something similar in this forum, so I need help. This is what I'm trying to do. For example, I have a file called file1: file1 word1... (4 Replies)

3. Shell Programming and Scripting

Hi, I have a file will 1000 lines.... I want to deleted some line in the file... like 800-850 lines i want to remove in that... can somebody help me..? thanks. (2 Replies)

4. Shell Programming and Scripting

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... (4 Replies)

5. Shell Programming and Scripting

I have file with 10000 records and i need to delete the lines in single shot based on line number range say from 10 to 51 , 53 to 59 , 105 to 107, 311 to 592 etc... between range works fine for me but how to achive for above case? please help sed '10,51 {d}' infile > outfile (5 Replies)

6. Shell Programming and Scripting

I have a file with ~200K lines, I need to delete 4K lines in it. There is no range. I do have the line numbers of the lines which I want to be deleted. I did tried using > cat del.lines sed '510d;12d;219d;......;3999d' file > source del.lines Word too long. I even tried... (2 Replies)

7. Shell Programming and Scripting

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... (5 Replies)

8. Shell Programming and Scripting

Here is an example of a file... foo1,good foo1,good foo2,error foo2,good Note that both rows for foo1 have good in the 2nd field, but one of the foo2 rows has error... I need something in ksh/awk/perl that will delete ALL foo2 lines if ANY of them have error in the 2nd field...so: ... (7 Replies)

9. UNIX for Advanced & Expert Users

Hi , i have a file with data as below.This is same file. But actual file contains to many rows. i want to search for a string "Field 039 00" and delete that line and previous 3 lines in that file.. Can some body suggested me how can i do using either sed or awk command ? Field 004... (7 Replies)

10. Shell Programming and Scripting

Shell : bash OS : RHEL 6.8 I have a file like below. $ cat pattern.txt hello txt1 txt2 txt3 some other text txt4 I want to remove all lines in this file except the ones starting with txt . How can I do this ? (4 Replies)