Searching patterns in 1 file and deleting all lines with those patterns in 2nd file
Hi Gurus,
I have a file say for ex. file1 which has 3500 lines in it which are different account numbers and another file (file2) which has 230000 lines in it. I want to read all the lines in file1 and delete all those lines from file2 which has that same pattern as in file1. I am not quite comfortable with awk, sed and perl. Please help me out. Your time is really appreciated.
Ex.
file1:
file2:
In this ex. say I want to delete lines 1 and 2 from file2 since the patterns '81457', '742222' are there in file1.
Thanks,
Toms
Last edited by vgersh99; 08-13-2009 at 09:28 AM..
Reason: code tags, PLEASE!
I want to delete lines like this
sed '/FROM_HERE/,/TO_HERE/d'
but I would like to *not* delete the second match, i.e. the TO_HERE line. How can I achieve this?
Thank you! (1 Reply)
Hi All,
I have written the below script that searches for the pattern in a file and delete them if present. please can some one have a look and suggest the changes in the script.
#!bin/sh
# The pattern that user want to add to the files
echo "Enter the pattern of the redirect"
read... (4 Replies)
Hi All,
I have a file in which i have to search for a pattern from the beginning of the file and if the pattern is found , then i have to perform a reverse search from that line to the beginning of the file to get the first occurrence of another pattern.
sample input file
hey
what are you... (8 Replies)
hi,
Here is excerpt from my xml file
<!-- The custom module to do the authentication for LDAP
-->
</login-module>
<login-module code="com.nlayers.seneca.security.LdapLogin" flag="sufficient">
<module-option... (1 Reply)
Hi,
I am new to shell scripting and is working on a script to extract lines from a log file between two time stamps using awk command. After some research I used following command:
awk '/01 Oct 2011/{p=1} /10 Oct 2011/{p=0} p' test.log >> tmp.log
This works fine. But now i want to... (3 Replies)
I want to delete 1 line above the paatern and 3 lines below the pattern and the pattern line itself, on the whole 5 lines. If there are three patterns to be deleted what to do and the final text file to be captured in a new file. (1 Reply)
I want to delete 1 line above the paatern and 3 line below the pattern and the pattern line itself, on the whole 5 lines. If there are three patterns what to do and the final text file to be captured in a new file. (3 Replies)
Hi,
I have a file with the content:
for name in \
sree\
rama\
laila\
srihari\
vicky\
john
do
echo $name
done
I need to remove all the name lines that exist between for (first line) and do line so that i can replace with new names.
Output file should look like: (3 Replies)
Hi Guys,
Need your urgent support please. I have a file with 3 separate strings separated by a comma and 2nd file which has a sentence where I can find these 3 strings. I need to find sentences which do not have these strings and maybe redirect it to a 3rd file.
All the 3 strings will occur... (3 Replies)
Hello.
For a given folder, I want to select any files find $PATH1 -f \( -name "*" but omit any files like pattern name ! -iname "*.jpg" ! -iname "*.xsession*" ..... \) and also omit any subfolder like pattern name -type d \( -name "/etc/gconf/gconf.*" -o -name "*cache*" -o -name "*Cache*" -o... (2 Replies)
Discussion started by: jcdole
2 Replies
LEARN ABOUT NETBSD
merge
MERGE(1) General Commands Manual MERGE(1)NAME
merge - three-way file merge
SYNOPSIS
merge [ options ] file1 file2 file3
DESCRIPTION
merge incorporates all changes that lead from file2 to file3 into file1. The result ordinarily goes into file1. merge is useful for com-
bining separate changes to an original. Suppose file2 is the original, and both file1 and file3 are modifications of file2. Then merge
combines both changes.
A conflict occurs if both file1 and file3 have changes in a common segment of lines. If a conflict is found, merge normally outputs a
warning and brackets the conflict with and lines. A typical conflict will look like this:
file A
lines in file A
=======
lines in file B
file B
If there are conflicts, the user should edit the result and delete one of the alternatives.
OPTIONS -A Output conflicts using the -A style of diff3(1), if supported by diff3. This merges all changes leading from file2 to file3 into
file1, and generates the most verbose output.
-E, -e These options specify conflict styles that generate less information than -A. See diff3(1) for details. The default is -E. With
-e, merge does not warn about conflicts.
-L label
This option may be given up to three times, and specifies labels to be used in place of the corresponding file names in conflict
reports. That is, merge -L x -L y -L z a b c generates output that looks like it came from files x, y and z instead of from files
a, b and c.
-p Send results to standard output instead of overwriting file1.
-q Quiet; do not warn about conflicts.
-V Print version number.
DIAGNOSTICS
Exit status is 0 for no conflicts, 1 for some conflicts, 2 for trouble.
IDENTIFICATION
Author: Walter F. Tichy.
Manual Page Revision: ; Release Date: .
Copyright (C) 1982, 1988, 1989 Walter F. Tichy.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995 Paul Eggert.
SEE ALSO diff3(1), diff(1), rcsmerge(1), co(1).
BUGS
It normally does not make sense to merge binary files as if they were text, but merge tries to do it anyway.
GNU MERGE(1)