Programming :: Split A File To Multiple File Using Awk Or Perl?
Feb 27, 2011
I have a single file that contain multi-text something likes this:
Quote:
No. Time Source Destination Protocol Info
185 27712.068199 192.168.18.23 192.168.18.191 SMTP S: 250 2.1.5 Ok
No. Time Source Destination Protocol Info
186 27715.068293 192.168.0.50 192.168.5.2 TCP suncacao-jmxmp > 44693 [ACK] Seq=1 Ack=1 Win=64807 Len=1380
[Code].....
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Apr 15, 2011
I have a file looks like the following:
digraph topology
{
"192.168.3.254" -> "10.1.1.11"[label="1.000", style=solid];
"192.168.3.254" -> "10.1.1.12"[label="1.000", style=solid];
[code]...
Order of these lines are random... So I cannot delete line #19, for example... And you can see that top four lines I want to delete are pairs. So there might be some clever way to detect the lines, if a line has both "1.9" and "1.11", then delete the line... I am new to perl language. The following is the code I have now... I think I just need to write some code inside the while loop checking if I want to delete the line $dotline before I write to a NEW file.
Code:
#!/usr/bin/perl -w
$TOPPATH = "/tmp";
$NAME = "topology";
$FILENAME = "$TOPPATH/$NAME.dot";
[code]....
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Apr 9, 2011
I have found a perl script that can convert single file: ascii to hex.
However I have thousand of file that I want to convert from ascii to hex.
Here is the perl script that convert single ascii file to hex in single line:
Quote:
So I would like to read multiple file from a directory.
Then the file will be have same name file with hex data.
Here is sample of the read and write directory file.
Quote:
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Nov 10, 2009
Each line of the file I am sorting is in the following format:
<url> <month> <day>
For example:
[URL]
I wrote the following to sort:
Code:
#!/usr/bin/perl
$in = shift;
chomp($in);
[code]....
The script worked fine for my small testing files, but failed in my input file. The input file is 18MB and containing more than 300,000 lines. The output will contains some lines like that:
url_one 10 1
url_two 10 1
url_three 10 3
url_four 10 1
Is that because my file is too big for perl to handle ?
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Aug 5, 2010
I have a file with 5 columns. Column 4 contains numbers.Is it possible to split the file into multiple files using a condition for the contents of column 4 i.e if column 4 contains a value between 0-10 then print the lines to a new file called less_than_10.txt
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Nov 22, 2010
I have a log file on ubuntu 10.04 that has 500 lines of log data in it. What command could I use in a terminal to split the single 500-line file into generate ten files each with 50-lines of log files each?
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Jul 28, 2009
I have script that I'm working on that updates a username in all the files that are called blah.inc for my framework. since i host a bunch of these web apps i need to do it to all of them. so I need to figure out how to update these files automagically with out me watching it to call vim every time. heres what I have so far
Code:
This finds the files but now i need to figure out how to do s/bob/fred/g on those files.
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May 17, 2010
I am trying to split a pattern in perl and so far I cannot get it to work. I have a pattern that looks like this:
76|2455311|2455312|00:00:00|00:00:00|Once|0|Donkey | |
I always need to print out the 8th field. So in this case donkey. Here is what I have so far:
Code:
#!/usr/bin/perl
use strict;
use warnings;
[Code].....
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Apr 14, 2011
I'm currently teaching myself perl. I'm trying to write a program that unscrambles words by comparing each element in the array. There is an input file where you type the words to be unscrambled and there is a word list file containing approximately 1300 words. After everything has been processed the program is supposed to paste those words to an output file.
Code:
#!/usr/local/bin/perl
#use strict; #always add this in the beginning of code.
#use warnings; #always add this in the beginning of code.
#open(INFILE, '<', 'sample.txt'); # For reading
#open(INFILE, '>', 'sample.txt'); # For writing
#open(INFILE, '>>', 'sample.txt'); # To append .....
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Jun 25, 2010
I have a file in which contains one line with a lot floating points.In the very first place and some times in the downstream, there are a few integers, surrounded by blank spaces.1 1.02-4 1.03-5 544 1.04-1 65 2.98-1 5.78-10 3.45-2 etc etc.I aim to split the file in more files each of them containing an integer and the following floatings until the next integer.
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Aug 26, 2010
If there's another way to improve a script that I have created, since I'm not an expert! It works, and it made what I wanted, but it took a while to do it... maybe it can be improved. Here's the background. I have one file, with 244000 lines, let's call it X. I needed to split it in 1000 files, each one of 244 lines. I also needed the files to have the .arp extension. So here is what I did:
Code:
for i in {1..1000}
do
sed -n '1,244p;244q' X > $i.arp
sed -i '1,244d;' X # in this way I deleted the copied lines each time
done
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Dec 16, 2010
I have an array called @logons. How can I step thru the array and split the fields? This is what I have so far, but doesnt work. I got the feeling I the split statement syntax is incorrect.
Code:
print @logons;
foreach my $logons(@logons){
($userid, $ip) = split(',',$logons);
[code]....
Update: Appears the data in @logons has a column header from the mysql query which I used to populate it with. So that code which I was testing does indeed work.
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Sep 18, 2010
I have a file (called twitterstatus.tmp) that looks like this:
Code:
<status>
<id>24854489768</id>
<text>Are we gonna ride the sun home?</text>
<id>55266987</id>
[code].....
How could I feed this into an array, with each element containing everything between the <status> </status> tags?
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Feb 18, 2011
I have a large text file with three columns. I'm trying to write a PERL script that splits the file up based on the value of the 3rd column. So every time the third column reads 0, a new file is created and all the data up until the next 0 is found is written to that new file. This should happen over and over until the initial file has been entirely split up.
ex data:
000
2024
2243
2143
96962871
97972878
000
2034
3034
3352
So with the data above, the file would be split into two files:
data_1.txt would contain
000
2024
2243
2143
96962871
97972878
and data_2.txt would contain
230
2034
3034
3352
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May 14, 2011
whether it is possible to split open a file and edit only one of the open windows.
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May 28, 2010
I wanted to copy one file to multiple new files. I have an idea to write a script and do the operation. But here i m looking for any particular command to do this operation.
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Apr 7, 2010
I have a input file like below :
949890;01-4477138;20101208;7003907933;0
1352305;01-32175;20101225;7005373440;0
0771586;03-975357;20091206;7004353176;0
[code]....
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Nov 9, 2010
I have a log file (test.log) starting & ending within dash (--) as below. I am looking to write a parser for test.log. This test.log file currently has single value for one Job ID but I wish to parse for repeated N values of different Job ID - Job, User, Queue, Dispatched Date, Dispatched Time, Completed Date, Completed Time, Hosts/Processor, CPU_T and TURNAROUND. I can either output this 10 values in another .log file or dump into cgi.
The selected parameters from test.log for parsing with above 10 attributes are -
--
Job <345010>
User <xyz>
Queue <gaussian>
[code]....
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Apr 10, 2010
I'm not able to write to a file using my perl cgi script which is as fallows:
Code:
#!/usr/bin/perl -w
use strict;
print "Content-type: text/html
[Code]....
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Apr 13, 2010
I have an html file like this
HTML Code:
Some more HTML code... I would like to cut the above text so i get this: Sometext on multiple lines like this.Sometext on multiple lines like this.Sometext on multiple lines like this. Sometext on multiple lines like this.Sometext on multiple lines like this.
There are other HTML files with similar cuts I need to do, but once I have the method for doing one, I am sure I can do the others.
I think the two logical strings to cut between would be:
I am not sure if these strings are always the start and end of the line respectively, is this makes a lot of difference! Then the HTML tags would need to be stripped to get the text on its own.
I know the commands for removing tags, but searching for a string like class="IOSSectionTitle", and cutting everything before it etc is something I am finding challenging.
Just thought I would add that the HTML does not nec. appear on logical new lines throughout the file and there may be unexpected new lines, but as far as i know the class="IOSSectionTitle" and <img always appears as a string without any new lines between those characters.
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Mar 6, 2011
I have a few problem. I have txt file like this:Quote:00 21 55 84 9a ff 00 1f 9e 1a 5b 00 08 00 45 00 00 4b 00 00 40 00 3f 11 9a 0e a1 8b fa 02 04 02Then, based on my txt file, I would like to generate text like this:Quote:00215584 2155849a 55849aff 849aff00 9aff001f ff001f9e 001f9e1a 1f9e1a5b 9e1a5b00 1a5b0008 5b000800 00080045 08004500 00450000 00004b00 004b0000 4b000040 00004000 0040003f 40003f11 003f119a 3f119a0e 119a0ea1 9a0ea18b 0ea18bfa a18bfa02ased in my reading, I found about ngram solution in perlbut I not really understand to edit from source code given. I m begineer user in programming language. I hope to get the solution. [URL]
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Jul 16, 2011
I am using File::Find to go through a very large tree. I am looking for all xml files and open only those that contain a tag <Updated>. I then want to capture the contents of two tags <Old> and <New>.
My problem is, after I open the file and do the first grep for <Updated> (which does work), I am unable to grep again unless I close the file and open it.
I did something like this:
Quote:
find(&check, $dir);
sub check {
if ($_ =~ /.xml/){
open(FILE,"$_");
if (grep{/Updated/} <FILE>){ # <-- works
[Code]....
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Oct 23, 2009
I am new to programming but I am a quick study. I have this script working.
#!/usr/bin/perl
@info=stat("/share/") or die "Can't stat share $!";
while (1) {
[code]...
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Apr 22, 2010
I am writing a script that involves reading the content of a file present in a directory and/or its sub directory. I know readdir returns all the files & DIR names in a directory but how to check weather readdir is returning a file or a directory
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Mar 16, 2011
I am trying to read certain lines within a file and give the output of the certain lines that dont equal my value, I think showing you would be easier. There is multiples of these inside one file...
Code:
LV Name /dev/vg00/lvol1
LV Status available/syncd
LV Size (Mbytes) 300lable/syncd
[code]....
I want to read everything in the file, if the status is not available then it should display the name (directly above status). If they are all availbale then do nothing. I think I know how to do it which includes putting the info in string form and placing in hash but it is proving to be out of my skill range.
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Jun 30, 2011
I have question about replacing a string in a file.
How can I replace the printerb's 10.1.1.1 to something else(10.1.1.2, for example) without replace printera's 10.1.1.1 accidentally?
I have tried perl -e -pi "s/10.1.1.1/10.1.1.2/g" /etc/hosts. but, perl replace both 10.1.1.1 to 10.1.1.2.
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Apr 6, 2010
where I'm trying to demonstrate the file locking concept through Perl/CGI.Here is the script which I tried.
Code:
#!/usr/bin/perl -w
use strict;
use warnings;
print "Content-type: text/html
[Code].....
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Jun 21, 2010
How can I delete rows into text file in perl?
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Jun 20, 2010
There is the Archive::Zip I think I can use with Perl 5.10 but I don't know how. I don't want to read or write any files, just zip something in memory, with best compression, like
$text = "this is a test";
$zippedtext = &Zip($text);
sub Zip {
[code]...
I guess it's only a few lines.
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Dec 20, 2010
So this is my code:
Code:
Modification of code I found here. It works, but I don't really know why.
Q1: Why is each filter hit counted only when the conditional is not true?
Q2: I've tried taking the file type, (.old), and put it into a variable for better usability, but then the script fails.
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