It doesn't perform very well because you're keeping 100,000 things in one string and using regular expressions to find them. This is never going to be efficient -- you're scanning through all 100,000 things every time you add a single one.
Use a hash to organize it into several smaller things instead of one big thing of 100,000 and avoid needing regexes to find them.
Hey Guys,
I have file which looks like this,
Contig201#numbPA
Contig1452#nmdynD6PA
dm022p15.r#CG6461PA
dm005e16.f#SpatPA
IGU001_0015_A06.f#CG17593PA
I need to remove duplicates based on the chracter matching upto '#'.
for example if we consider this..
Contig201#numbPA... (4 Replies)
Input File is :
-------------
25060008,0040,03,
25136437,0030,03,
25069457,0040,02,
80303438,0014,03,1st
80321837,0009,03,1st
80321977,0009,03,1st
80341345,0007,03,1st
84176527,0047,03,1st
84176527,0047,03,
20000735,0018,03,1st
25060008,0040,03,
I am using the following in the script... (5 Replies)
Hello experts,
I am trying to remove all lines in a csv file where the 2nd columns is a duplicate. I am try to use sort with the key parameter
sort -u -k 2,2 File.csv > Output.csv
File.csv
File Name|Document Name|Document Title|Organization
Word Doc 1.doc|Word Document|Sample... (3 Replies)
Hi freinds
I have a small problem I want u to help me in, I have a syslog server and configured it to send me email automatically, I get a small perl script to help me in, and tested it to send alerts to root and it worked successfully without any problems
Now I want to send it outside, I... (4 Replies)
Can some one provide me a shell script.
I have file with many columns and many rows. need to sort the first column and then remove the duplicates records if exists.. finally print the full data with first coulm as unique.
Sort BASED ON FIRST FIELD and remove the duplicates if exists... (2 Replies)
Hi,
I'm using the below command to sort and remove duplicates in a file. But, i need to make this applied to the same file instead of directing it to another.
Thanks (6 Replies)
Hello,
I have a large amount of data with the following structure:
Word=Transliterated word
I have written a Perl Script (reproduced below) which goes through the full file and identifies all dupes on the right hand side. It creates successfully a new file with two headers: Singletons and Dupes.... (5 Replies)
I need to use bash to remove duplicates without using sort first.
I can not use:
cat file | sort | uniq
But when I use only
cat file | uniq
some duplicates are not removed. (4 Replies)
Here is my task :
I need to sort two input files and remove duplicates in the output files :
Sort by 13 characters from 97 Ascending
Sort by 1 characters from 96 Ascending
If duplicates are found retain the first value in the file
the input files are variable length, convert... (4 Replies)
Following is the input. 1st and 3rd block are same(block starts here with '*' and ends before blank line) , 2nd and 4th blocks are also the same:
cat <file>
* Wed Feb 24 2016 Tariq Saeed <tariq.x.saeed@mail.com> 2.0.7-1.0.7
- add vmcore dump support for ocfs2
* Mon Jun 8 2015 Brian Maly... (4 Replies)
Discussion started by: Paras Pandey
4 Replies
LEARN ABOUT OSF1
pagesizes
PAGESIZES(5) File Formats Manual PAGESIZES(5)NAME
pagesizes - HylaFAX page size definitions
DESCRIPTION
The pagesizes database defines the page dimensions and guaranteed reproducible areas (GRA) for well-known page sizes. The GRA is the por-
tion of the page that is guaranteed to be imaged during facsimile transmission. This region is typically less than the full page dimen-
sions because of paper roller contacts and other mechanical aspects of the printing process in a facsimile machine.
All HylaFAX programs that require page size information read the information from this database using a page size name. Documents should
be prepared such that the full page dimensions are employed with the imaged area contained within the GRA.
The system-wide default page size to use in preparing documents for transmission is given by the ``default'' entry in the database. (NB:
the default entry should be placed last so that inverse matches find the real page size name and not the default entry.)
The page size database is an ASCII file with the following format. Each entry consists of whitespace-separated fields:
name abbrev width height gra-width gra-height top-margin left-margin
Fields have the following interpretation:
name the full name for the page size; e.g. ISO A4;
abbrev an abbreviated version of the full name for use in compact listings such as the receive queue listing printed by faxstat(1);
width the full width of the page;
height the full height of the page;
gra-width the width of the GRA;
gra-height the height of the GRA;
top-margin the margin between the top of the full page and the top of the GRA;
left-margin the margin between the left side of the full page the left side of the GRA.
The first two fields must be separated from the subsequent fields by a tab character (possibly followed by more whitespace); this is done
to easily permit blank characters to be included in names. Otherwise fields can be separated by any amount of any kind of whitespace.
Numbers are all base 10 and in basic measurement units (BMU); defined as 1/1200 x 25.4 millimeters for paper output with a scale factor of
one. All fields must be present on a single line; otherwise the entry is ignored. Comments are introduced by the ``#'' character and con-
tinue to the end the line.
Page size database lookups are either by name or by page dimensions. Lookups by name are done by sequentially scanning the entries in the
database for the first entry that has a matching abbreviation or substring of the page size name field. The string comparisons ignore case
so, for example, ``a4'' would match a full name of ``ISO A4''. Lookups by dimension scan the entire database and return the page with the
closest dimensions using a straightforward distance metric. If the difference in dimensions of the closest match is greater than 1/2 inch
on each side, then no page entry is returned for a lookup by dimension.
SEE ALSO hylafax-client(1), faxmail(1), faxstat(1), sendfax(1), sgi2fax(1), textfmt(1).
December 5, 1994 PAGESIZES(5)