Hi,
i want to match a string using perl that has got 5 pluses(+++++).
i am using a function for this.
$str1="+++++";
check($str1,"\\+");
sub check{
$str1=$_;
$str2=$_;
if($str1=~m/^$str2{5}$/){
print "Correct.\n";
}else{
print "Wrong..\n";
... (6 Replies)
Hi,
I am trying to grep for the following type of string from a document given below:
12637 1239 3356 12956 7004 7004 7004 13381 13381
*> 12.0.1.63 0 7018 21872 ?
* 208.51.134.254 53 0 3549 7018 21872 ?... (1 Reply)
Can anyone give the detailed explanation on regex search
i want to know the use of regex in sed and awk also......
the operators like ^,.,* ....etc i need it with some example.....kindly help on this.
I gone through the man pages also..but i was not clear......... (1 Reply)
I would like to search strings composed by only one type of charachter for example
only strings composed by the charachter 'b'
is it right?
$egrep '\<(b+)+\>' filename
Could be there some side effects?
Regards. (1 Reply)
I am having trouble parsing rpm filenames in a shell script.. I found a snippet of perl code that will perform the task but I really don't have time to rewrite the entire script in perl. I cannot for the life of me convert this code into something sed-friendly:
if ($rpm =~ /(*)-(*)-(*)\.(.*)/)... (1 Reply)
I have a regex I'd like to implement and I believe it should be working and I have tested it on various websites that have regex testers but it always says the name is invalid.
#!/bin/bash -x
echo Enter the users first and last name.
read name
if... (11 Replies)
I have a file of protein sequences with headers (my source file). Based on a list of IDs (which are included in some of the headers), I'd like to print out only the specified sequences, with only the ID as header.
In other words, I'd like to search source.txt for the terms in IDs.txt, and print... (3 Replies)
I am not a big expert in regex and have just little understanding of that language.
Could you help me to understand the regular Perl expression:
^(?!if\b|else\b|while\b|)(?:+?\s+){1,6}(+\s*)\(*\) *?(?:^*;?+){0,10}\{
------
This is regex to select functions from a C/C++ source and defined in... (2 Replies)
Here i am writing a script to check&display only the valid mail address from a file
echo "Plz enter the Target file name with path"
read path
if
then
echo "The valid mail address are:"
email=$(grep -E -o "\b+@+\.{2,6}\b" $path )
echo "$email"
fi
The file contains the data like this:... (6 Replies)
I'm trying to get some exclusions into our sendmail regular expression for the K command. The following configuration & regex works:
LOCAL_CONFIG
#
Kcheckaddress regex -a@MATCH
+<@+?\.++?\.(us|info|to|br|bid|cn|ru)
LOCAL_RULESETS
SLocal_check_mail
# check address against various regex... (0 Replies)
Discussion started by: RobbieTheK
0 Replies
LEARN ABOUT CENTOS
hwloc-distances
HWLOC-DISTANCES(1) hwloc HWLOC-DISTANCES(1)NAME
hwloc-distances - Displays distance matrices
SYNOPSIS
hwloc-distances [options]
OPTIONS -l --logical
Display hwloc logical indexes (default) instead of physical/OS indexes.
-p --physical
Display OS/physical indexes instead of hwloc logical indexes.
-i <file>, --input <file>
Read topology from XML file <file> (instead of discovering the topology on the local machine). If <file> is "-", the standard input
is used. XML support must have been compiled in to hwloc for this option to be usable.
-i <directory>, --input <directory>
Read topology from the chroot specified by <directory> (instead of discovering the topology on the local machine). This option is
generally only available on Linux. The chroot was usually created by gathering another machine topology with hwloc-gather-topology.
-i <specification>, --input <specification>
Simulate a fake hierarchy (instead of discovering the topology on the local machine). If <specification> is "node:2 pu:3", the
topology will contain two NUMA nodes with 3 processing units in each of them. The <specification> string must end with a number of
PUs.
--if <format>, --input-format <format>
Enforce the input in the given format, among xml, fsroot and synthetic.
--restrict <cpuset>
Restrict the topology to the given cpuset.
-v --verbose
Verbose messages.
--version
Report version and exit.
DESCRIPTION
hwloc-distances displays also distance matrices attached to the topology. A breadth-first traversal of the topology is performed starting
from the root to find all distance matrices.
NOTE: lstopo may also display distance matrices in its verbose textual output. However lstopo only prints matrices that cover the entire
topology while hwloc-distances also displays matrices that ignore part of the topology.
EXAMPLES
On a quad-socket opteron machine:
$ hwloc-distances
Latency matrix between 4 NUMANodes (depth 2) by logical indexes:
index 0 1 2 3
0 1.000 1.600 2.200 2.200
1 1.600 1.000 2.200 2.200
2 2.200 2.200 1.000 1.600
3 2.200 2.200 1.600 1.000
RETURN VALUE
Upon successful execution, hwloc-distances returns 0.
hwloc-distances will return nonzero if any kind of error occurs, such as (but not limited to) failure to parse the command line.
SEE ALSO hwloc(7), lstopo(1)1.7 Apr 07, 2013 HWLOC-DISTANCES(1)