I have statement like this
column_id.columnname=="value"
in unix i want to modify above statement to
variable1=="value"
that means i have to replace the string before "==" by string "variable1"
second catch is, in statement instead of "==" you can have any arithmatic comarision... (7 Replies)
Hi
I am trying to find a product code hightlighted in red, and re-insert it at another place on the same file. I shall be grateful if anyone can help me with this. Stuck and have deadline!!:confused:
Original Line: (I can get source data in one of these two formats)
ISD=977155185403901+DIE... (2 Replies)
Hi,
There are some "n" files in a directory which contains comman string.A command to find and replace the string in all the files without looping.
like if i am in a directory :
# find ./ -name ".txt" | xargs sed -e 's/test/tst'
Upto here is performed correctly and i want to... (4 Replies)
hi,
i have a data in a file like below:
100 8388kmn844., 8488
200 8398kmn894., 8398
i want replace from kmn to . as null.
output should be
100 8388, 8488
200 8398, 8398
Plz help.
Thanks in advance (1 Reply)
I am looking to find and replace a string in a file, can anyone suggest a global find and replace. looked at previous replies on other queries but none seem to address what i am looking for. aint familiar with sed so trying to use ordinary unix commands if possible
Thanks in advance (2 Replies)
Need to convert
echo "7 6"
to
$7,$6
But the count of numbers can increase say echo "7,6,8,9" tried this didn't work
echo "7 6" | sed 's/\(*\)/\1/'
But did not help much (3 Replies)
I have the following requirement in the shell script
1. I have more than 200 shell script files. I need to find out how many shell scripts have "sqlplus /" in the shell file
2. I need to replace all the shell scripts in the single command
for example: connect scott/scott
replace as ... (6 Replies)
i am having a file test1.txt and its contents is as follows.
<abcaaa bbb ccc ddd>
<dddeeeffff>
<my computer>
<abcmydocuments>
Now I need to find the text abc and should be replaced as follows.
<abc>
<dddeeeffff>
<my computer>
<abc>
First line has the text "abc" and it has to be... (3 Replies)
Hi All,
I have data like below
1 CREATE TABLE temp123
2 (
3 col1 INTEGER,
4 col2 CHAR(3) CHARACTER SET LATIN NOT CASESPECIFIC,
5 col3 DECIMAL(19,0),
6 col4 VARCHAR(80) CHARACTER SET LATIN NOT CASESPECIFIC,
7 start_dt DAte FORMAT 'YY/MM/DD',
8 end_dt DATE FORMAT 'YY/MM/DD',
9 datecol1... (6 Replies)
Hi Team,
one silly issue. but its not working for me.
I need to find a pattern a file and replace it with the given value in another file.
Here's the code snippet.
Search_String=100
Replace_String=151
cat ${work}/temp_${CSV_File} | sed 's|"${Search_String}"|"${Replace_String}"|g'... (2 Replies)
Discussion started by: kmanivan82
2 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)