06-08-2007
great thanks alot works great! have a nice weekend!
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1. Shell Programming and Scripting
Hello,
I want to compare two files. All records in file 2 that are not in file 1 should be output to file 3.
For example:
file 1
123
1234
123456
file 2
123
2345
23456
file 3 should have
2345
23456
I have looked at diff, bdiff, cmp, comm, diff3 without any luck! (2 Replies)
Discussion started by: blt123
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2. UNIX for Dummies Questions & Answers
I have two CSV files and I would like to create a third CSV file containing the differences between the two.
I understand the diff command can be used to list differences between two files. My problem is that when I pipe the output into a third CSV file, the line numbers and other formatting... (3 Replies)
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3. Shell Programming and Scripting
hello, i'm trying to figure out a way to limit the output from an SQL query that is counting the number of occurances of a value in a field and the problem is when i run this query against a huge file with many unique values the output is pretty huge.
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4. Shell Programming and Scripting
Hi All,
Second time to post on this group :)
I'm pulling my hair now 'coz I'm so dumb to produce this requirement.
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Here is my script:
--Input: "user_list.txt"... (0 Replies)
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5. Shell Programming and Scripting
Hi All,
I want to delimit the output using awk.
For eg::
a,b,c,d,e,f
abc,def,ghi
should change to
a|b|c|d|e|f
abc|def|ghi
Or to put in another way..
OFS will work in the following code if I seperate the values with comma (eg. $1,$2,$3,$4,$5,$6 ). But since the no. of... (3 Replies)
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6. Shell Programming and Scripting
I'm asking for explanation about the output of the diff format when i compare the two files f1 and f2:
root@host1 # cat f1
205226
205237
205250
205255
205262
205274
205307
205403
205464
205477
205500
205520
205626
205759
205766
205776 (2 Replies)
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7. Shell Programming and Scripting
I have two files to compare, but diff output doesn't give me decent output I want.
The portion of the two files are shown below.
file 1)
Authorize <1>
Transaction Database Slave 3 <1>
CPM HTTP Proxy Server <1>
SSP (TDB Server) <1>
CPM Application Authorization <7>
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8. UNIX for Dummies Questions & Answers
35d34
<
What does that mean in diff? (3 Replies)
Discussion started by: glev2005
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9. UNIX for Dummies Questions & Answers
Hi,
I wasn't sure whether to post this in the dummies or expert section, here's what I'm trying to do, but I suspect I'm missing the boat and should perhaps be using some of diff's builtin output functionality.
diff -yb --suppress-common-lines file1.js file2.js >> ~/results.txt
When I... (5 Replies)
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10. Shell Programming and Scripting
I am running diff between two directories dir1 and dir2.
diff --exclude --recursive --brief -b dir1 dir2
The output of the above command is
Files dir1/java/abc/bcd/abc9991.java and dir2/java/abc/bcd/abc9991.java differ
Files dir1/java/abc/bcd/abc9933.java and... (11 Replies)
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LEARN ABOUT DEBIAN
pdl::gsl::diff
DIFF(3pm) User Contributed Perl Documentation DIFF(3pm)
NAME
PDL::GSL::DIFF - PDL interface to numerical differentiation routines in GSL
DESCRIPTION
This is an interface to the numerical differentiation package present in the GNU Scientific Library.
SYNOPSIS
use PDL;
use PDL::GSL::DIFF;
my $x0 = 3.3;
my @res = gsldiff(&myfunction,$x0);
# same as above:
@res = gsldiff(&myfunction,$x0,{Method => 'central'});
# use only values greater than $x0 to get the derivative
@res = gsldiff(&myfunction,$x0,{Method => 'forward'});
# use only values smaller than $x0 to get the derivative
@res = gsldiff(&myfunction,$x0,{Method => 'backward'});
sub myfunction{
my ($x) = @_;
return $x**2;
}
FUNCTIONS
gsldiff()
This functions serves as an interface to the three differentiation functions present in GSL: gsl_diff_central, gsl_diff_backward and
gsl_diff_forward. To compute the derivative, the central method uses values greater and smaller than the point at which the derivative is
to be evaluated, while backward and forward use only values smaller and greater respectively. gsldiff() returns both the derivative and an
absolute error estimate. The default method is 'central', others can be specified by passing an option.
Please check the GSL documentation for more information.
Usage:
($d,$abserr) = gsldiff($function_ref,$x,{Method => $method});
Example:
#derivative using default method ('central')
($d,$abserr) = gsldiff(&myf,3.3);
#same as above with method set explicitly
($d,$abserr) = gsldiff(&myf,3.3,{Method => 'central'});
#using backward & forward methods
($d,$abserr) = gsldiff(&myf,3.3,{Method => 'backward'});
($d,$abserr) = gsldiff(&myf,3.3,{Method => 'forward'});
sub myf{
my ($x) = @_;
return exp($x);
}
BUGS
Feedback is welcome. Log bugs in the PDL bug database (the database is always linked from <http://pdl.perl.org>).
SEE ALSO
PDL
The GSL documentation is online at
http://sources.redhat.com/gsl/ref/gsl-ref_toc.html
AUTHOR
This file copyright (C) 2003 Andres Jordan <andresj@physics.rutgers.edu> All rights reserved. There is no warranty. You are allowed to
redistribute this software documentation under certain conditions. For details, see the file COPYING in the PDL distribution. If this file
is separated from the PDL distribution, the copyright notice should be included in the file.
The GSL differentiation routines were written by David Morrison.
FUNCTIONS
diff_central
Signature: (double x(); double [o] res(); double [o] abserr(); SV* funcion)
info not available
diff_central does not process bad values. It will set the bad-value flag of all output piddles if the flag is set for any of the input
piddles.
diff_backward
Signature: (double x(); double [o] res(); double [o] abserr(); SV* funcion)
info not available
diff_backward does not process bad values. It will set the bad-value flag of all output piddles if the flag is set for any of the input
piddles.
diff_forward
Signature: (double x(); double [o] res(); double [o] abserr(); SV* funcion)
info not available
diff_forward does not process bad values. It will set the bad-value flag of all output piddles if the flag is set for any of the input
piddles.
perl v5.14.2 2012-05-30 DIFF(3pm)