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 CENTOS
libtar_list_del
libtar_list_new(3) C Library Calls libtar_list_new(3)NAME
libtar_list_new, libtar_list_free, libtar_list_next, libtar_list_prev, libtar_list_add, libtar_list_del, libtar_list_search, lib-
tar_list_dup, libtar_list_merge, libtar_list_add_str - linked list routines
SYNOPSIS
#include <libtar.h>
libtar_list_t *libtar_list_new(int flags, int (*cmpfunc)());
void libtar_list_free(libtar_list_t *l, void (*freefunc)());
int libtar_list_add_str(libtar_list_t *l, char *str, char *delim);
int libtar_list_add(libtar_list_t *l, void *data);
void libtar_list_del(libtar_list_t *l, libtar_node_t **n);
int libtar_list_search(libtar_list_t *l, libtar_node_t **n, void *data, int (*matchfunc)());
int libtar_list_next(libtar_list_t *l, libtar_node_t **n);
int libtar_list_prev(libtar_list_t *l, libtar_node_t **n);
libtar_list_t *libtar_list_dup(libtar_list_t *l);
libtar_list_t *libtar_list_merge(int (*cmpfunc)(), int flags, libtar_list_t *list1, libtar_list_t *list2);
DESCRIPTION
The libtar_list_new() function creates a new list. The flags argument must be one of the following values:
LIST_USERFUNC
The cmpfunc argument points to a user-supplied function which determines the ordering of the list.
LIST_STACK
Use the list as a stack. New elements are added to the front of the list.
LIST_QUEUE
Use the list as a queue. New elements are added to the end of the list.
The libtar_list_free() function deallocates all memory associated with the list l. If freefunc is not NULL, it is called to free memory
associated with each node in the list.
The libtar_list_add() function adds the element pointed to by data to the list l. The position of the new element will be determined by
the flags passed to libtar_list_new() when the list was created.
The libtar_list_add_str() function tokenizes the string str using the delimiter characters in the string delim. The resulting tokens are
added to list l using libtar_list_add().
The libtar_list_search() function searches for an element which matches data using the matching function matchfunc. If matchfunc is NULL,
a default matching function designed for ASCII strings is used. Searching begins from the node pointed to by n.
The libtar_list_del() function removes the entry pointed to by n from the list pointed to by l.
The libtar_list_dup() function creates a copy of the list l using dynamically allocated memory.
The libtar_list_merge() function creates a new list with flags and cmpfunc, in the same way as libtar_list_new(). It then adds all ele-
ments from list1 and list2 using libtar_list_add().
RETURN VALUE
The libtar_list_new(), libtar_list_dup(), and libtar_list_merge() functions return a pointer to the new list structure, or NULL on error.
The libtar_list_next(), libtar_list_prev(), and libtar_list_search() functions return 1 when valid data is returned, or 0 otherwise.
The libtar_list_add() and libtar_list_add_str() functions return 0 on success, or -1 on error.
SEE ALSO libtar_hash_new(3)University of Illinois Jan 2000 libtar_list_new(3)