Programming :: Compare Directory To .txt Or .xml ?

Dec 14, 2010

I have a database of around 4000 files. I use rsync script to transfer from 2 separate updated hdd every month but I need a way to compare a .txt file or .xml file to the updated drive as I cannot use rsync delete because I can not mount all 3 drives at the same time?

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Programming :: Bash - Compare Directory To Database?

May 23, 2011

I have a (rather large) database of mp3 track information. I also have several directories of the actual mp3s. I'm trying to write a simple bash script that will check the contents of the directories against what's in the database, and upon finding a file that isn't in the database, do something.

Here's what I have so far:


The trouble I'm having (in the sample directory of "/mnt/music/B/Beatles, The/" the file "Beatles, The - Taxman.mp3" isn't in the database.) is getting it to actually trigger an error when an entry isn't in the database.

Once triggering on a non-entered file is working, any way to get it to traverse the entire /mnt/music hierarchy?

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General :: Binary Compare Of Directory Structure

Apr 13, 2011

diff has the ability to trasverse directory structures. cmp has the ability to manage binary files.

I'm looking for something which allows me to compare a directory's contents, including files and subdirectories, and so a binary comparison.

Any suggestions, scripts, etc. which may be of help?

Some of my directories are huge, with huge (image) files in them.

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General :: Compare Directory Content That Has Since Been Updated?

Jul 20, 2011

We copied the directories/files from one filesys1 to filesys2 and since that initial copy have further added more directories/files to filesys2 from another source. How can we compare filesys1 to filesys2 to make sure all files/directories were copied successfully to filesys2? I would like a way to check filesys1 against filesys2 and only show/output when something is missing from filesys2 that exists in filesys1 and not report the additional/extra directroies/files that have been copied to filesys2.

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General :: Compare Directory/files In Two Different Linux Boxes?

Apr 5, 2011

How can I use diff to compare the files of similar directories on to diferent linux boxes.

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General :: Compare Directory Structure Without Matching Data In Files

Jul 22, 2010

What is the best and simplest way to compare two directory structures without actually comparing the data in files. This works fine:
diff -qr dir1 dir2
But it's really slow because it's comparing files too. Is there a switch for diff or another simple cli tool to do this?

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Programming :: Script To Compare 2 Columns ?

Mar 1, 2011

Actually build a script which can monitor the "DateTimeHourMinute" in a data file.

I wanted to compare the "DateTimeHourMinute" from the 2nd column against "DateTimeHourMinute" on the 3rd column which located in the same line.

Below is the data sample:

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Programming :: Compare The Filenames Without Extensions?

Jan 3, 2009

I have a large number of files, all of them named /*/*.xyz I need to match them to potential files name /*/*.abc I have tried find -name *xyz |awk '// {print '$NF'}' | awk '{print $NF }' but the result has the full path I just need the filename without the extention, and without the full path.

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Programming :: Mysql Compare Two Rows

Aug 21, 2010

I would like to compare to mysql rows as follows:

Select count(*) from stocks2.historical where close*1.05 < (select open from stocks2.historical where date = date_add(date,interval 1 day))
and year(date)=2010;

The problem is with the "date" in bold... i want that date to be the date of the previous row. is there a way to do that purely with mysql? (naturally, i can write a script to go through and compare each date; what i'm asking for is a mysql solution.)

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Programming :: C Arguments To Main - Can't Compare Values?

Jul 24, 2011

Whats wrong with this:

#include <stdio.h>
int main(int argc, char *argv[])
if(argv[4] == "-verbose")
printf("Verbose is on");


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Programming :: Compare Files With Fields Separated With ':'?

Jul 16, 2011

Dear expertsI have files like

ABD : 5869 events, relative ratio : 1.173800E-01 , sum of ratios : 1.173800E-01
VBD : 12147 events, relative ratio : 2.429400E-01 , sum of ratios : 3.603200E-01
SDF : 17000 events, relative ratio : 3.400000E-01 , sum of ratios : 7.003200E-01


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Programming :: Compare Two Filenames Including The Paths?

Jun 22, 2011

I am trying to compare two filenames including the paths. Basically if two paths are similar then my program wants to display message. So I need to check for if two pathnames are same in the sorce and destination. So I was trying for the code to compare tow filename sincluding "" and if the Parent FIle Path is found in the child file path then I need to displays ome message. I was trying to modify something like this:

# Sample script


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Programming :: Query To Compare Records Of Two Different Tables?

Dec 31, 2010

i am trying this query to compare records of two different tables...i m geting this message!! no required out putvalues for these ($jobTitle $industry $stationBase $gender $maritalStatus)are coming from textboxes!here is the code...

PHP Code:
$query = "(SELECT *,
MATCH(industry, gender, maritalStatus , typeofWorkPosition , preferCity) AGAINST ('$


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Programming :: Script To Compare Users In Files?

Mar 28, 2011

I have two files with user DN's that exported from two different LDAP directories. I wanted to write a script that reads(checks) users (cn=user1) in file Ack to see if users(cn=user1) exists in file B and give me nice output with what users are missing in file B.I have around 30k users in file A with following format..Quote:



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Programming :: Compare Two Md5sum Outputs To See If The Files Match?

Nov 5, 2010

I would like to compare two md5sum outputs to see if the files match. in my script I have


MD5_ORIG=$(md5sum -b "$ORG_FILE")


How do I get just the MD5 hash and not the */.... stuff so I can compare them. i tried Code: JUST_HASH=${$MD5_ORIG:0:32} but All I get is line 79: ${$MD5_ORIG:0:32}: bad substitution

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Programming :: AWK: Compare Apache Dates Without Using Regular Expression

May 15, 2010

I'm writing a loganalysis application and wanted to grab apache log records between two certain dates. Assume that a date is formated as such: 22/Dec/2009:00:19 (day/month/year:hour:minute) Currently, I'm using a regular expression to replace the month name with its numeric value, remove the separators, so the above date is converted to: 221220090019 making a date comparison trivial.. but.. Running a regex on each record for large files, say, one containing a quarter million records, is extremely costly.. is there any other method not involving regex substitution? here's the function doing the convertion/comparison


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Programming :: Reading File And Compare In Bash Scripts?

Dec 9, 2010

how to program in bash, an i have a problem, i am trying compare values in between 2 values (from another file), so far my solution is to make a nested for loop, but that causes it to compare every value. Here is a visulization of what i want

file.a 2,3,4,5
3 5


i want the values 2, 3, 4, 5 from file.a to be compared inbetween values 3 5, 6 9,1 2, 4 7 from file.b (var1 is the value im comparing, var2 is the less value, var 3 is the greater value)

for i in $var1
for k in $var2


my problem with the above code is it compares EVERYINNG, not the values inbetween what i want (which is 3 5, 6 9 etc).

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Programming :: Compare Two Files Using Perl Or Shell Scripting?

Mar 8, 2010

I want to compare the following two tab-delimited .txt files (both were subsets of the original files) by comparing Columns 3 and 4 simultaneously. It is easy to compare C3 because both C3s are just numbers. But how to compare C4s?Basically, in File1, "G,G" = G in File2, "C,C" = C in File2, "A,A" = A in File2, "T,T"= T in File2.In File2, A/T in Column4 just equals "A,T" or "T,A" in Column4 of File1. C/T in Column4 just equals "C,T" or "T,C" in Column4 of File1, and etc.


C1C2 C3C4
ih508- 7244977"A,A"


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Programming :: Print, Store Or Compare An S8 Data Type?

Feb 15, 2011

I'm working with Radiotap headers right now. I want to get the RSSI data. I came through a problem that I can't figure out right now.The value that I need to get is:

now, when I printf it:


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Programming :: If Statements With Decimal Places - Compare It To A Predefined Value

Aug 11, 2010

I'm writing an if statement where a variable is a number such as 14.05 (this is actually a temperature) and I want to compare it to a predefined value, sample code below:


I have all sorts of errors regardless of how I do this (double quotes, square brackets). The best idea I've had is stripping off the decimal place so it's a 4 digit number (e.g warning=1503 and DEV_TMP=1405) however this seems a little unnescessary and I'm sure there's an easier way of achieving the same thing.

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Programming :: Rsync - Script To Compare Files And Transfer Updates

Oct 4, 2010

I need to create a script that will compare the differences between two folders and then to copy only the updated and new files only to another directory. I know I need to use rsync here, I can write scripts so really it not how to create a script it is how do I accomplish the transfer of only new or changes files between two folders to a new file. Do I need to link these two folders first and then use the "--compare-dest" switch.

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Programming :: Bash Regexp String Compare Stopped Working?

Oct 20, 2010

Have a bash script which contains a line like this:

if [[ ${array[${last}]} =~ "screenpc.PRODUCTION.*" ]]

which WORKED as expected in bash 4.0.33 and now fails in 4.1.2

Instrumented the script to print the value of the left-hand side and it is exactly what is expected.

As noted above, this has been working fine until we installed Fedora 13 (kernel 2.6.33), and now it fails.

Tried setting shell 'extglob' to On with same results.

Did something change? Are there other shell/bash options that need to be set?this has the whole installation stopped!

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Programming :: Perl: Compare CGI Input With Data From A MySQL Table?

Nov 19, 2008

I have this program:

#! /usr/bin/perl
use DBI ;
use strict ;


and I get this error simply running the program from the command line: DBD::mysql::st execute failed: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 at ./submit.cgi line 24.

is this the right syntax to use, both, for this line:

my (@param) = $cgi->param("firstname","lastname","type") ;

as well as this one:

$sth=$dbh->prepare ("SELECT firstname,lastname,type FROM dts WHERE firstname LIKE $param[0] AND lastname LIKE $param[1] and type LIKE $param[2]" );

or should there be quotes around the $param[0] or something? (also is it $param[0] or $param(0)?)

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Programming :: SQLite Read, Write, Select, Compare Statements For C++

Jun 9, 2010

I am using C++ with SQLite db in a program that will read read a sub set of records, compare records and write different records to another database. I have a SQLite book, but it only shows examples for the C API. Anyone have code samples in C++ for the following:

Open database
Select *

Or, just show me how to execute a SQL statement with C++ and I can then figure out the various SQL statements I need.

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Programming :: Copy Files After Search In Array From This Directory To Another Directory?

Jan 3, 2009

After i try to find logfiles follow date/month/year. i want copy this files to another directory with name's directory is time you find(date/month/year).

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Programming :: HUGE Files - Compare A List Of Patterns From One File And Grep Them Against Another File And Print Out Only The Unique Patterns?

Aug 13, 2010

I am trying to compare a list of patterns from one file and grep them against another file and print out only the unique patterns. Unfortunately these files are so large that they have yet to run to completion. Here's the command that I used:

Code: grep -L -f file_one.txt file_two.txt > output.output Here's some example data:


how to increase efficiency or use another command?

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Programming :: Compare Two Files Line By Line And Print The Line Which Is Same?

May 30, 2011

I am trying to write a program in C which compares two files and prints the line that is equal.

Here file1.txt has

and file2.txt has

Note: file2.txt consist of only a single string where as file2.txt has multiple lines. Actually im comparing two files with md5sum values.

Here is the code but it compares only first line of files..but it should compare the whole file1..and sorry iam a beginner in C can any1 sujest some modification to this code so can compare file2 with entire file1


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Programming :: OpenCV Programming - Highgui.h: No Such File Or Directory?

Jul 1, 2010

I installed OpenCV and am trying the example programs. When I try to compile like in the tutorial it is not finding highgui.h.I have 64 bit Mint if that helps at all

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Programming :: Deleted Files In Directory With So Many Files Without Deleting Directory Itself

Nov 14, 2010

There are millions of files in many directories. Wherenver i try rm * or find or use xargs, they say 'argument list too long' and exit. How can i deleted files in a directory with so many files without deleting the directory itself.

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Programming :: Get The Contents Of A Directory In C++?

Dec 27, 2010

How to get the contents of a directory in C++?I know about opendir(), but I wonder if there is a C++ way (that uses classes and exceptions).

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