I have a file which has about 500K records and I need to delete about 50 records from the file. I know line numbers and am using
sed '13456,13457,......d' filename > new file.
It does not seem to be working.
Any help will greatly appreciated. (5 Replies)
Hi there,
Want a help. I have a file with 10,000 lines.Want to delete first 50,000 lines thru script.What will be the comand. :confused:
Thanks
Satadru (3 Replies)
Input:
a
b
b
c
d
d
I need:
a
c
I know how to get this (the lines that have duplicates) :
b
d
sort file | uniq -d
But i need opossite of this. I have searched the forum and other places as well, but have found solution for everything except this variant of the problem. (3 Replies)
Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
im having an array @check which contains text ..i want to open the array and i have to delete lines starting from a word called "check1" till "check2"
for eg:-
check1 Use descriptive titles when posting. For example, do not post questions with subjects like "Help Me!", "Urgent!!" or "Doubt".... (0 Replies)
Hi
I need to delete lines from a file which are after pattern1 and between pattern 2 and patter3, as below:
aaaaaaaa
bbbbbbbb
pattern1
cdededed
ddededed
pattern2
fefefefe <-----Delete this line
efefefef <-----Delete this line
pattern3
adsffdsd
huaserew
Please can you suggest... (6 Replies)
Hello,
I have file of more than 10000 lines.
I want to delete 40 lines after every 20 lines.
e.g from a huge file, i want to delete line no from 34 - 74, then 94 - 134 etc and so on.
Please let me know how i can do it.
Best regards, (11 Replies)
Discussion started by: nehashine
11 Replies
LEARN ABOUT X11R4
perl-after-upgrade
PERL-AFTER-UPGRADE(1) User Contributed Perl Documentation PERL-AFTER-UPGRADE(1)NAME
perl-after-upgrade -- fixup FreeBSD packages that depend on perl
SYNOPSIS
perl-after-upgrade
perl-after-upgrade -f
perl-after-upgrade -v
DESCRIPTION
The standard procedure after a perl port (either lang/perl5.6 or lang/perl5.8) upgrade is to basically reinstall all other packages that
depend on perl. This is always a painful exercise. The perl-after-upgrade utility makes this process mostly unnecessary.
The tool goes through the list of installed packages, looks for those that depend on perl, moves files around, modifies shebang lines in
those scripts in which it is necessary to do so, tries its best to adjust dynamically linked binaries that link with libperl.so in the old
path, and updates the package database.
After installation of the new perl is complete, either by hand from the ports collection, or from a package, or via portupgrade, do the
following:
o go root;
o run perl-after-upgrade utility.
Do not specify any arguments at first, so it does nothing destructive. Pay attention to the produced output and especially to
errorlist at the end, if any;
o run the utility again, with -f command line option.
This will actually do the work. Again, pay attention to the output produced;
o fix any reported errors;
o reinstall required packages:
The utility will tell you what packages that depend on perl it could not handle. It will also tell you why it happened (for example,
they were compiled against a binary incompatible perl). If you want such packages to remain operational, you will have to reinstall
then by hand or via portupgrade.
o review the files left in the older perl installation.
This is typically /usr/local/lib/perl5/site_perl/5.X.Y/. There should be very little, if any, files in that directory and its subdi-
rectories, excepting a number of .ph files;
o check that things work as they should;
o remove backup files from the package database.
Those will be /var/db/pkg/*/+CONTENTS.bak;
o that's all.
COPYRIGHT AND LICENSE
Copyright 2005 by Anton Berezin
"THE BEER-WARE LICENSE" (Revision 42)
<tobez@FreeBSD.org> wrote this module. As long as you retain this
notice you can do whatever you want with this stuff. If we meet some
day, and you think this stuff is worth it, you can buy me a beer in
return.
Anton Berezin
NO WARRANTY OF ANY KIND, USE AT YOUR OWN RISK.
HISTORY
The first version of this utility was not bundled with perl package on FreeBSD. It was dumber than the current version in several impor-
tant areas. It was faster.
CREDITS
Thanks to Mathieu Arnold for discussion.
SEE ALSO perl(1).
perl v5.8.9 2009-04-13 PERL-AFTER-UPGRADE(1)