I have to delete 1st 7000 lines of a file which is 12GB large. As it is so large, i can't open in vi and delete these lines. Also I found one post here which gave solution using perl, but I don't have perl installed. Also some solutions were redirecting the o/p to a different file and renaming it.... (3 Replies)
Ok here's what I'm trying to do. I need to get a listing of all the mountpoints on a system into a file, which is easy enough, just using something like "mount | awk '{print $1}'"
However, on a couple of systems, they have some mount points looking like this:
/stage
/stand
/usr
/MFPIS... (2 Replies)
OK, I have read several things on how to do this, but can't make it work. I am writing this to a vi file then calling it as an awk script.
So I need to search a file for duplicate lines, delete duplicate lines, then write the result to another file, say /home/accountant/files/docs/nodup
... (2 Replies)
Hi please help me how to remove duplicate lines in any file.
I have a file having huge number of lines.
i want to remove selected lines in it.
And also if there exists duplicate lines, I want to delete the rest & just keep one of them.
Please help me with any unix commands or even fortran... (7 Replies)
Hey all, a relative bash/script newbie trying solve a problem.
I've got a text file with lots of lines that I've been able to clean up and format with awk/sed/cut, but now I'd like to remove the lines with duplicate usernames based on time stamp. Here's what the data looks like
2007-11-03... (3 Replies)
hi :)
I need to delete partial duplicate lines
I have this in a file
sihp8027,/opt/cf20,1980182
sihp8027,/opt/oracle/10gRelIIcd,155200016
sihp8027,/opt/oracle/10gRelIIcd,155200176
sihp8027,/var/opt/ERP,10376312
and need to leave it like this:
sihp8027,/opt/cf20,1980182... (2 Replies)
The question is not as simple as the title... I have a file, it looks like this
<string name="string1">RZ-LED</string>
<string name="string2">2.0</string>
<string name="string2">Version 2.0</string>
<string name="string3">BP</string>
I would like to check for duplicate entries of... (11 Replies)
Hi, I'm sorry I'm no coder so I came here, counting on your free time and good will to beg for spoonfeeding some good code. I'll try to be quick and concise!
Got file with 50k lines like this:
"Heh, heh. Those darn ninjas. They're _____."*wacky
The "canebrake", "timber" & "pygmy" are types... (7 Replies)
Hi,
I have a file as follows.
file1
Hello
Hi
His
Hi
Hi
Hungry
hi
so I want to delete identical lines while leaving one of them undeleted.
So desired output will be
Hello
Hi (2 Replies)
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)
Perl::Critic::Policy::Subroutines::ProhibitReturnSort(3pUser Contributed Perl DocumentatPerl::Critic::Policy::Subroutines::ProhibitReturnSort(3pm)NAME
Perl::Critic::Policy::Subroutines::ProhibitReturnSort - Behavior of "sort" is not defined if called in scalar context.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
The behavior of the builtin "sort" function is not defined if called in scalar context. So if you write a subroutine that directly
"return"s the result of a "sort" operation, then you code will behave unpredictably if someone calls your subroutine in a scalar context.
This Policy emits a violation if the "return" keyword is directly followed by the "sort" function. To safely return a sorted list of
values from a subroutine, you should assign the sorted values to a temporary variable first. For example:
sub frobulate {
return sort @list; # not ok!
@sorted_list = sort @list;
return @sort # ok
}
KNOWN BUGS
This Policy is not sensitive to the "wantarray" function. So the following code would generate a false violation:
sub frobulate {
if (wantarray) {
return sort @list;
}
else{
return join @list;
}
}
CONFIGURATION
This Policy is not configurable except for the standard options.
CREDITS
This Policy was suggested by Ulrich Wisser and the <http://iis.se> team.
AUTHOR
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>
COPYRIGHT
Copyright (c) 2005-2011 Imaginative Software Systems. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license
can be found in the LICENSE file included with this module.
perl v5.14.2 2012-06-07 Perl::Critic::Policy::Subroutines::ProhibitReturnSort(3pm)