If you want to look for filenames that begin with the value of the i variable:
Within the "quotes" the shell expands $i but does not evaluate the * (filename generation).
But the find evaluates the * (for each pathname like the shell would do it).
This User Gave Thanks to MadeInGermany For This Post:
Hi Guys,
Wondering if anyone can help me. I have a find command on a Linux box that works as expected:
find \( -not -type d -or -not -name log -and -not -name loc -and -not -name usr -and -not -name etc -and -not -name tmp -and -not -name wrk -and -not -name changes -or -prune \) -and -not... (6 Replies)
Hi Eveyone,
I am working on one shell script to find the specific records from data file and add the totals into variables and print them. you can find the sample data file below for more clarification.
Sample Data File:
PXSTYL00__20090803USA
CHCART00__20090803IND... (7 Replies)
Hello all. I've been trying to install NWCHEM in parallel on a new cluster, and have been able to get it to work on single processors by ignoring any MPI environment variables.
This is, of course, pretty worthless. So I'm starting over and trying to get thing set up right for the MPI. The key... (6 Replies)
Hello.I have been trying to solve the following problem, but to no avail. If anyone could please give me some indications, or anything, it would be amazing.
A C source program and a type name are given. Determine from source,
the list of the global variables having the given type.
For each... (5 Replies)
I have a flat file (template) where I want to replace variables based upon a value in another file (csv).
The variables in the template are named %VAR_X_z%
The values are in the csv file and X is field 0 of each line and y field 1 and up.
Example of the csv:
Badidas, 13.00, 12.00, 11.00,... (8 Replies)
I have a script like this (Yes, I know the DAY6 number isn't right - I'm just testing at this point):
DAY0=`date -I`
DAY1=`date -I -d "1 day ago"`
DAY6=`date -I -d "2 days ago"`
if
then
ssh root@synology1 nohup rm -rf "/volume1/Fileserver/$DAY6"
fi
I've tested the line to remove the... (5 Replies)
I have a number of files in the /tmp directory with PET-DOG in their name. I want to delete them, leaving only files with PET-CAT and PET-HORSE. I'd like to use the find command to locate those files (by using a variable) and then I'd like to delete them. However, I can't find a way to do this. I... (3 Replies)
I have a file as follows:
0
1056
85540
414329
774485
1208487
1657519
2102753
2561259
3037737
3458144
3993019
4417959
4809964
5261890
5798778
6254146
I want to find all lines between a specified start and end tag. (6 Replies)
Discussion started by: jamie_123
6 Replies
LEARN ABOUT DEBIAN
graph::unionfind
Graph::UnionFind(3pm) User Contributed Perl Documentation Graph::UnionFind(3pm)NAME
Graph::UnionFind - union-find data structures
SYNOPSIS
use Graph::UnionFind;
my $uf = Graph::UnionFind->new;
# Add the vertices to the data structure.
$uf->add($u);
$uf->add($v);
# Join the partitions of the vertices.
$uf->union( $u, $v );
# Find the partitions the vertices belong to
# in the union-find data structure. If they
# are equal, they are in the same partition.
# If the vertex has not been seen,
# undef is returned.
my $pu = $uf->find( $u );
my $pv = $uf->find( $v );
$uf->same($u, $v) # Equal to $pu eq $pv.
# Has the union-find seen this vertex?
$uf->has( $v )
DESCRIPTION
Union-find is a special data structure that can be used to track the partitioning of a set into subsets (a problem known also as disjoint
sets).
Graph::UnionFind() is used for Graph::connected_components(), Graph::connected_component(), and Graph::same_connected_components() if you
specify a true "union_find" parameter when you create an undirected graph.
Note that union-find is one way: you cannot (easily) 'ununion' vertices once you have 'unioned' them. This means that if you delete edges
from a "union_find" graph, you will get wrong results from the Graph::connected_components(), Graph::connected_component(), and
Graph::same_connected_components().
API
add
$uf->add($v)
Add the vertex v to the union-find.
union
$uf->union($u, $v)
Add the edge u-v to the union-find. Also implicitly adds the vertices.
has
$uf->has($v)
Return true if the vertex v has been added to the union-find, false otherwise.
find
$uf->find($v)
Return the union-find partition the vertex v belongs to, or "undef" if it has not been added.
new
$uf = Graph::UnionFind->new()
The constructor.
same
$uf->same($u, $v)
Return true of the vertices belong to the same union-find partition the vertex v belongs to, false otherwise.
AUTHOR AND COPYRIGHT
Jarkko Hietaniemi jhi@iki.fi
LICENSE
This module is licensed under the same terms as Perl itself.
perl v5.10.0 2008-11-27 Graph::UnionFind(3pm)