Perl: Comparing to two files and displaying the differences
Hi,
I'm new to perl and i have to write a perl script that will compare to log/txt files and display the differences. Unfortunately I'm not allowed to use any complied binaries or applications like diff or comm.
So far i've across a code like this:
When I run this I get 444 returned as expected. However I'm wondering how I can change this so that it compares two log or txt files (ie. list1.txt and list2.txt).
I need to write a script to find out if there are any .c files created/removed from the last time i monitored the files available. i first created a file to contain all the .c files available on the system. (ls *.c > file1)
I created another file using the same command.
I used the comm file1... (4 Replies)
Hello Everybody!!!!!!!!! Request you to help me with the below mentioned issue:
I have 2 files say,
File 1:
a|4|7
b|3|2
c|8|8
d|8|9
File 2:
a|4|6
b|2|2
c|8|8
d|9|8
The third file(output file) should have:
Data mismatch in row 1 column 3
Data mismatch in row 2 coumn 2
Data... (3 Replies)
Hi
Hope you are having a great weeknd !! I had a question and need your expertise for this :
I have 2 files File1 & File2(of same structure) which I need to compare on some columns. I need to find the values which are there in File2 but not in File 1 and put the Differences in another file... (5 Replies)
Hi
*
I have two text files which has the file size, timestamp and the file name. I need to compare these two files and get the differences in the output format. Can anyone help me out with this.
*
cat file1.txt
*474742 Apr 18* 2010 sample.log
*135098 Apr 18* 2010 Testfile
134282 Apr 18* 2010... (7 Replies)
What do i need to do have the below perl program load 205 million record files into the hash. It currently works on smaller files, but not working on huge files. Any idea what i need to do to modify to make it work with huge files:
#!/usr/bin/perl
$ot1=$ARGV;
$ot2=$ARGV;
open(mfileot1,... (12 Replies)
I have 2 files that need to be compared. Email the differences if something is different and don't email if nothing is different. One or both of the files could be empty. One or both could have data in them.
example files
backup.doc.$(date +%y%m%d) file size is 0
backup.doc.$(TZ=CST+24... (4 Replies)
Hi....I'm having 2 xml files, one is having some special characters and another is a clean xml file does not have any special characters. Now I need one audit kind of file which will show me only from which line the special characters have been removed and the special characters.
Can you please... (1 Reply)
I have these two file that I am trying to compare using shell arrays. I need to find out the changed or the missing
enteries from File2. For example. The line "f nsd1" in file2 is different from file1 and the line "g nsd6" is missing
from file2.
I dont want to use "for loop" because my files... (2 Replies)
Hello ,
I am trying to compare two files i.e one master file and the other exclusion file. If the second field of masterfile is oracle8 then I need to compare the 3rd field of master file with the 1st field of all the rows of exclusion file else I need to compare 2nd field from master file with... (2 Replies)
Good day to all.
I'm relatively new in using the Sun Solaris OS. I would like to request your expertise in helping to solve a problem that I have at work. Not sure if this has been asked before but I have tried searching through the internet to no avail.
Basically I have 2 sun solaris... (8 Replies)
Discussion started by: Fossil_84
8 Replies
LEARN ABOUT DEBIAN
sgmldiff
SGMLDIFF(1)SGMLDIFF(1)NAME
sgmldiff - Find differences in the markup of two SGML files
SYNOPSIS
sgmldiff [ options ... ] file1 file2 [ -a | --attributes
| -c [ attributes | nesting | textpos ] | --context [ attributes | nesting | textpos ]
| -s | --statistics
| -h | --help
| -v | --version ]
DESCRIPTION
This perl script allows to determine the structural differences between two SGML files. It compares the files, regardless of what is in
between the tags, to only focus on the markup. Its output is similar to diff(1).
The typical use of sgmldiff is to compare an SGML file with its translation into another language. If the translation was done cleanly,
sgmldiff returns without finding any difference in the markup.
An example of a typical call to sgmldiff is:
sgmldiff english.sgml italiano.sgml
If there are differences in markup between both files, sgmldiff will output a series of differences reports summarized with lines of the
form:
169a164
At line 169 of the first file, line 164 of the second file has been added.
8a12,15
At line 8 of the first file, lines 12 to 15 of the second file have been added.
41d28 Line 41 of the first file has been destroyed, to obtain line 28 of the second file.
63,66d61
Lines 63 to 66 of the first file have been destroyed. to obtain line 61 of the second file.
52c51 Line 52 of the first file has been changed into line 51 of the second file.
5,7c8,10
Lines 5 to 7 of the first file have been changed into lines 8 to 10 of the second line. In addition to those summaries, the lines
of the first file are shown preceeded by '<' and the lines of the second file are shown preceeded by '>".
OPTIONS
Here is the list of actions that can be requested to sgmldiff:
[ -a | --attributes ]
Include the attribute values in the difference tests. Don't set this value if the attributes are likely to be translated. Set this
value if the attributes value shouldn't change between both files. Default is to don't include the attributes in the difference
tests.
[ -c [ attributes | nesting | textpos ] | --context [ attributes | nesting | textpos ] ]
Add more context to the difference. Since every test between the tags is removed before testing the differences, sgmldiff is likely
to resynchronize itself at the wrong place, by thinking the location in both files correspond, while it's not true. By adding more
context to the compared area, such risk is disminished.
The allowed values for the --context option are:
attributes
Take into account the attribute names. The attribute values are controlled by the attributes option.
nesting
Take into account the nesting level of all the compared tags.
textpos
Take into account the position in the text.
[ -s | --statistics ]
Print some SGML information at the end.
[ -h | --help ]
Print a short help message and exit
[ -v | --version ]
Print the version identifier and exit
FILES AUTHORS
Frederik Fouvry
Developer of sgmldiff.
SEE ALSO jw(1)
conversion from a SGML file to other file formats
nsgmls(1)
a base component of Jade DSSSL engine
http://sources.redhat.com/docbook-tools/ <URL:http://sources.redhat.com/docbook-tools/>
the home page of the DocBook tools, a compendium of all tools necessary to process DocBook files, including the DocBook-utils
12 September 2012 SGMLDIFF(1)