can someone explain the meaning of the following shell commands:
1. who / wc -l
2. who / sort > user_names
3. cat students > new_students
4. current_day='date / cut -cl-3'
i would also appreciated if you could tell me some things about the umask
1. what is a good umask value and why?
2.... (2 Replies)
What is the basic syntax for a script that says
do you want to do this?
y - execute this
n - end
not y or n - end and print this
for example if I want to run this:
"Do you want to start this process?"
answer
if y,Y, or yes
then
run the following script (do I put the script with... (10 Replies)
hi all
plese clarify me in the following area.
1. What is the default NFS version in solaris 5.10. If it is 3, then why it asks me to specify "-o vers=3" keyword while i am mounting a share from a RHEL 5.1 Server?
2. Can someone give the link to download packages for accessing "ntfs"... (4 Replies)
1. Write a shell script to print the file names of all files having .txt extension of a given directory after converting to uppercase letters. The input (directory name) should be given as command line argument. The script will also check whether sufficient arguments are passed or not and whether... (1 Reply)
1. Write a shell script to print the file names of all files having .txt extension of a given directory after converting to uppercase letters. The input (directory name) should be given as command line argument. The script will also check whether sufficient arguments are passed or not and whether... (2 Replies)
hello guys!! need 1 favour from u all..
Can u jst tell me the answers for these ques??
1. ls - l _____ : command to return all files that end with single digit and those with TXT extension
2. ls -l report* _______ : command to return all files that start with the word RPT except those with LOG... (1 Reply)
Hi Unix geniuses,
I need your help for the answers of few objective Q&A.
i dont know if my answers are correct or not.
So i really need your help to provide the answers which will help me in unix programming. (1 Reply)
Discussion started by: Vivekit82
1 Replies
LEARN ABOUT DEBIAN
number::range
Number::Range(3pm) User Contributed Perl Documentation Number::Range(3pm)NAME
Number::Range - Perl extension defining ranges of numbers and testing if a number is found in the range. You can also add and delete from
this range.
SYNOPSIS
use Number::Range;
my $range = Number::Range->new("-10..10,12,100..120");
if ($range->inrange("13")) {
print "In range
";
} else {
print "Not in range
";
}
$range->addrange("200..300");
$range->delrange("250..255");
my $format = $range->range;
# $format will be '-10..10,12,100..120,200..249,256..300'
DESCRIPTION
Number::Range will take a description of a range, and then allow you to test on if a number falls within the range. You can also add and
delete from the range.
RANGE FORMAT
The format used for range is pretty straight forward. To separate sections of ranges it uses a "," or whitespace. To create the range, it
uses ".." to do this, much like Perl's own binary ".." range operator in list context.
METHODS
new
$range = Number::Range->new("10..20","25..30");
Creates the range object. It will accept any number of ranges as its input.
addrange
$range->addrange("22");
This will also take any number of ranges as input and add them to the existing range.
delrange
$range->delrange("10");
This will also take any number of ranges as input and delete them from the existing range.
inrange
$range->inrange("26"); my @results = $range->inrange("27","200");
This will take one or more numbers and check if each of them exists in the range. If passed a list, and in array context, it will
return a list of 0's or 1's, depending if that one was true or false in the list position. If in scalar context, it will return a
single 1 if all are true, or a single 0 if one of them failed.
range
$format = $range->range; @numbers = $range->range;
Depending on context this will return either an array of all the numbers found in the range, for list context. For scalar context it
will return a range string.
size
$size = $range->size;
This will return the total number of entries in the range.
EXPORT
None by default.
SEE ALSO
Number::Tolerant, Tie::RangeHash, and Array::IntSpan for similar modules.
AUTHOR
Larry Shatzer, Jr., <larrysh@cpan.org>
COPYRIGHT AND LICENSE
Copyright (C) 2004-12 by Larry Shatzer, Jr.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2012-06-20 Number::Range(3pm)