10-31-2011
Wow! Thanks....those were amazingly fast replies!
What is the difference between the two methods? Is there a difference (in any scenario) or is it just a matter of personal choice?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all..
I got a problem..
Its easy to redirect o/p to a file.. But Is it possible to redirect the O/P to a variable?
For example:
I've a command in my script:
string1=cut -d ':' -f2 file.txt
When I do:
echo $string1
The value is empty... Pls suggest me how to store the value... (7 Replies)
Discussion started by: smartbuddy
7 Replies
2. Shell Programming and Scripting
I have a variable A
echo $A
5060
I am exporting the value X,Y,Z and it id fetching right thing and When I run
C=`${X} -l ${Y} ${Z} "trap '' INT;. ~/.profile >/dev/null 2>/dev/null; netstat -na | grep \$A`"
here it is going to same directory and also running netstat -na | grep 5060
... (4 Replies)
Discussion started by: madhusmita
4 Replies
3. Shell Programming and Scripting
I want to instert Category:XXXXX into the 2. line
something like this should work, but I have somewhere the wrong sytanx. something with the linebreak goes wrong:
sed "2i\\${n}Category:$cat\n"
Sample:
Titel Blahh Blahh abllk sdhsd sjdhf
Blahh Blah Blahh
Blahh
Should look like... (2 Replies)
Discussion started by: lowmaster
2 Replies
4. Shell Programming and Scripting
I am sure it has been answered in some form or the other in this forum but trust me I have spent last couple of hours looking for an answer but can't find it.
I want to do a very simple operation within my script.
Let's say I have 4 files with the names file1.log, file2.log, file3.log and... (6 Replies)
Discussion started by: sssccc
6 Replies
5. Shell Programming and Scripting
Hi,
I am trying to do the following thing
var='date'
$var
Above command substitutes date for and in turn runs the date command and i am getting the todays date value.
I am trying to do the same thing as following, but facing some problems,
unique_host_pro="sed -e ' /#/d'... (3 Replies)
Discussion started by: gvinayagam
3 Replies
6. Shell Programming and Scripting
Hello Experts
I am newbie to unix and writing one script to make archive files
Problme i am facing is : I have used find command to find the type of files and I am storing find command results in a variable.
When I echo the variable I can see that path is printed properly but when i am... (5 Replies)
Discussion started by: mitsyjohn
5 Replies
7. Shell Programming and Scripting
Hi
How to use a variable to store the filename of a file which was found by the 'find' command.
can this be practical-->var = find . -name "filename.dat"
Please help.. (1 Reply)
Discussion started by: ayyappaas
1 Replies
8. Shell Programming and Scripting
I wrote this script
#!/bin/bash
var=`du -sch /var/log/messages;du -sch /var/log/maillog`
echo $var
I am getting result as follows.
# sh my.sh
2.1M /var/log/messages 2.1M total 296K /var/log/maillog 296K total
I need it like below
2.1M /var/log/messages
296K... (3 Replies)
Discussion started by: anilcliff
3 Replies
9. Shell Programming and Scripting
Is it possible to store a command inside a variable?
i want this piece to be stored inside a variable, so i can use it later in a different command
$u | cut -d " " -f 2
var="$u | cut -d " " -f 2"
eval $var
I tried to use eval but I receive this error:
-f 2: command not found
... (5 Replies)
Discussion started by: velos
5 Replies
10. Programming
I am trying to store output of python command in variable. Could you please help how I can do that ?
For example I am executing the following command - "CentOS" in server_desc
The output would be True or False
I would like to store the output in a variable say outPut and use condition... (4 Replies)
Discussion started by: atanubanerji
4 Replies
LEARN ABOUT DEBIAN
algorithm::checkdigits::m11_001
CheckDigits::M11_001(3pm) User Contributed Perl Documentation CheckDigits::M11_001(3pm)
NAME
CheckDigits::M11_001 - compute check digits for ISBN, ISSN, VAT RN (PT), HKID (HK), Wagon number (BR), NHS (GB), VAT (SL)
SYNOPSIS
use Algorithm::CheckDigits;
$isbn = CheckDigits('isbn');
if ($isbn->is_valid('3-88229-192-3')) {
# do something
}
$cn = $isbn->complete('3-88229-192-');
# $cn = '3-88229-192-3'
$cd = $isbn->checkdigit('3-88229-192-3');
# $cd = '3'
$bn = $isbn->basenumber('3-88229-192-3');
# $bn = '3-88229-192-'
DESCRIPTION
ALGORITHM
1. The sequence of digits is processed right to left. Every digit is multiplied with their position in the sequence (i.e. the digit left
to the check digit has the weight 2 then 3 etc.).
With a Hongkong ID (hkid) the leftmost char is replaced with its position in the alphabet and then multiplied with 8 (its weight).
2. The sum of all products is computed.
3. The sum of step 2 is taken modulo 11.
4. The checkdigit is the difference of the sum from step 3 to eleven under the following conditions:
isbn,issn
If the difference is 10, the check digit is 'X'.
If the difference is 11, the check digit is 0.
ustid_pt
If the difference is greater then 9, the check digit is '0'.
hkid If the difference is 10, the check digit is 'A'.
If the difference is 11, the check digit is 0.
wagonnr_br
If the difference is 10, the check digit is 0.
If the difference is 11, the check digit is 1.
nhs_gb If the difference is 10, the number would not be taken.
If the difference is 11, the check digit is 0.
vat_sl This is a little bit unclear, don't trust on the method for this type.
METHODS
is_valid($number)
Returns true only if $number consists solely of numbers and the last digit is a valid check digit according to the algorithm given
above.
Returns false otherwise,
complete($number)
The check digit for $number is computed and concatenated to the end of $number.
Returns the complete number with check digit or '' if $number does not consist solely of digits and spaces.
basenumber($number)
Returns the basenumber of $number if $number has a valid check digit.
Return '' otherwise.
checkdigit($number)
Returns the checkdigit of $number if $number has a valid check digit.
Return '' otherwise.
EXPORT
None by default.
AUTHOR
Mathias Weidner, <mathias@weidner.in-bad-schmiedeberg.de>
SEE ALSO
perl, CheckDigits, www.pruefziffernberechnung.de.
perl v5.10.0 2008-05-17 CheckDigits::M11_001(3pm)