Hi,
i'm new here (and to scripting too).
I was hoping for some help in comparing two files.
i have a file called 'file1' with a list of names in the following format:
adam jones
paul higgins
kelly lowe
i also have another file which may contain some of the names but with a lot of... (4 Replies)
Hi,
I have one situation. I have some 6-7 no. of files in one directory & I have to extract all the lines which exist in all these files. means I need to extract all common lines from all these files & put them in a separate file.
Please help. I know it could be done with the help of... (11 Replies)
Hi, everyone,
Let's say, we have
xxx.txt
A 1 2 3 4 5
C 1 2 3 4 5
E 1 2 3 4 5
yyy.txt
A 1 2 3 4 5
B 1 2 3 4 5
C 1 2 3 4 5
D 1 2 3 4 5
E 1 2 3 4 5
First I match the first column I find intersection (A,C, E), then I want to take those lines with ACE out from yyy.txt, like
A 1... (11 Replies)
Hi ,
I have a text file in the format
DB2:
DB2:
WB:
WB:
WB:
WB:
and a second text file of the format
Time=00:00:00.473
Time=00:00:00.436
Time=00:00:00.016
Time=00:00:00.027
Time=00:00:00.471
Time=00:00:00.436
the last string in both the text files is of the... (4 Replies)
Hi all,
I'd like you to help or give any advise about the following:
I have two (2) files, file1 and file2, both files have information common to each other. The contents of file1 is a subset of the contents of file2:
file1:
errormsgadmin
esdp
esgservices
esignipa
iprice
ipvpn
irm... (18 Replies)
Hello everyone
A few years Ago the user radoulov posted a fancy solution for a problem, which was about finding common lines (gene variation names) between multiple samples (files). The code was:
awk 'END {
for (R in rec) {
n = split(rec, t, "/")
if (n > 1)
dup = dup ?... (5 Replies)
Hi All,
I have two files like below:
File1
MYFILE_28012012_1112.txt|4
MYFILE_28012012_1113.txt|51
MYFILE_28012012_1114.txt|57
MYFILE_28012012_1115.txt|57
MYFILE_28012012_1116.txt|57
MYFILE_28012012_1117.txt|57
File2
MYFILE_28012012_1110.txt|57
MYFILE_28012012_1111.txt|57... (2 Replies)
Could it be possible to find common lines between all of the files in one folder? Just like comm -12 . So all of the files two at a time. I would like all of the outcomes to be written to a different files, and the file names could be simply numbers - 1 , 2 , 3 etc. All of the file names contain... (19 Replies)
Discussion started by: Eve
19 Replies
LEARN ABOUT REDHAT
io::dir
IO::Dir(3pm) Perl Programmers Reference Guide IO::Dir(3pm)NAME
IO::Dir - supply object methods for directory handles
SYNOPSIS
use IO::Dir;
$d = new IO::Dir ".";
if (defined $d) {
while (defined($_ = $d->read)) { something($_); }
$d->rewind;
while (defined($_ = $d->read)) { something_else($_); }
undef $d;
}
tie %dir, IO::Dir, ".";
foreach (keys %dir) {
print $_, " " , $dir{$_}->size,"
";
}
DESCRIPTION
The "IO::Dir" package provides two interfaces to perl's directory reading routines.
The first interface is an object approach. "IO::Dir" provides an object constructor and methods, which are just wrappers around perl's
built in directory reading routines.
new ( [ DIRNAME ] )
"new" is the constuctor for "IO::Dir" objects. It accepts one optional argument which, if given, "new" will pass to "open"
The following methods are wrappers for the directory related functions built into perl (the trailing `dir' has been removed from the
names). See perlfunc for details of these functions.
open ( DIRNAME )
read ()
seek ( POS )
tell ()
rewind ()
close ()
"IO::Dir" also provides an interface to reading directories via a tied HASH. The tied HASH extends the interface beyond just the directory
reading routines by the use of "lstat", from the "File::stat" package, "unlink", "rmdir" and "utime".
tie %hash, IO::Dir, DIRNAME [, OPTIONS ]
The keys of the HASH will be the names of the entries in the directory. Reading a value from the hash will be the result of calling
"File::stat::lstat". Deleting an element from the hash will call "unlink" providing that "DIR_UNLINK" is passed in the "OPTIONS".
Assigning to an entry in the HASH will cause the time stamps of the file to be modified. If the file does not exist then it will be cre-
ated. Assigning a single integer to a HASH element will cause both the access and modification times to be changed to that value. Alterna-
tively a reference to an array of two values can be passed. The first array element will be used to set the access time and the second ele-
ment will be used to set the modification time.
SEE ALSO
File::stat
AUTHOR
Graham Barr. Currently maintained by the Perl Porters. Please report all bugs to <perl5-porters@perl.org>.
COPYRIGHT
Copyright (c) 1997-8 Graham Barr <gbarr@pobox.com>. All rights reserved. This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
perl v5.8.0 2002-06-01 IO::Dir(3pm)