Insert a line in a file by deleting that line from another file
Hi all,
I have a huge file(size more that 5GB).
I want to do some manupulation with the records and write to another file.
As the size of the file is huge and there is a space constraint in that directory, I want to delete that record from first file after writing it in to second file.
Example:-
can anyone please help me on this???
thanks in adv....
Last edited by Scott; 11-15-2012 at 04:58 PM..
Reason: Code tags, again
Hello,
I need to insert a line (like a header) as the first line of a very huge file (about 3 ml rows). I am able to do it with sed, but redirecting the output and creating a new file takes quite some time. I was wondering if there was a more efficient way of doing it?
Any help would be... (3 Replies)
Script 1
Pre-requisites
Create a file with x amount of lines in it, the content of your choice.
Write a script that takes two arguments. The first being a line of text, the second being your newly created file. The script should take the first argument and insert it into the very top (the... (3 Replies)
Hi All,
I have too many .gz files (test.gz).
Task is to remove first line of each file.
Can I do it without unzipping the files?
Your help is appreciated. (4 Replies)
Hi Friends,
I am writing a shell script where it is required to insert a file say file1 into file2 after certain number of fixed lines in file2..
Please help me how this could be done.. Please suggest me any useful links i need to go through to achieve this....
Thanks in advance .. (2 Replies)
Hi,
I need to insert a new line containing the string "QUERY" above every 5 lines.
The below piece of code inserts a new line after every 5th line
awk '{print $0} !(NR%5) {print "QUERY"}'
sed 'n;n;n;n;G;' --> I do not know how to give "QUERY" string here
But I need to insert it before... (4 Replies)
I have a test file that I want to read and insert only certain lines into the
the table based on a filter.
1. Rread the log file 12 Hours back Getdate() -12 Hours
2. Extract the following information on for lines that say "DUMP is
complete"
A. Date
B. Database Name
C.... (2 Replies)
Hi All,
I am using UNix Sun OS sun4u sparc SUNW,SPARC-Enterprise
My intention is to insert a line of text after 13th line of every file inside a particular directory.
While trying to do it for a single file , i am using sed
sed '3 i this is the 4th line' filename
sed: command garbled: 3... (5 Replies)
Hi friends, here is my problem.
I have three files like this..
cat file1.txt
=======
unix is best
unix is best
linux is best
unix is best
linux is best
linux is best
unix is best
unix is best
cat file2.txt
========
Windows performs better
Mac OS performs better
Windows... (4 Replies)
Hi all,
I'm new to scripting.. facing some problems while inserting content of a file into another file...
I want to insert content of a file (file2) into file1, before first occurrence of "line starts with pattern" in file1
file1
======
working on linux
its unix world
working on... (14 Replies)
Discussion started by: Jagadeesh Kumar
14 Replies
LEARN ABOUT CENTOS
pagesize
PAGESIZE(1) General Commands Manual PAGESIZE(1)NAME
pagesize - Print supported system page sizes
SYNOPSIS
pagesize [options]
DESCRIPTION
The pagesize utility prints the page sizes of a page of memory in bytes, as returned by getpagesizes(3). This is useful when creating por-
table shell scripts, configuring huge page pools with hugeadm or launching applications to use huge pages with hugectl.
If no parameters are specified, pagesize prints the system base page size as returned by getpagesize(). The following parameters affect
what other pagesizes are displayed.
--huge-only, -H
Display all huge pages supported by the system as returned by gethugepagesizes().
--all, -a
Display all page sizes supported by the system.
SEE ALSO oprofile(1), getpagesize(2), getpagesizes(3), gethugepagesizes(3), hugectl(7), hugeadm(7), libhugetlbfs(7)AUTHORS
libhugetlbfs was written by various people on the libhugetlbfs-devel mailing list.
October 10, 2008 PAGESIZE(1)