how can i show the value when i divide a number where the dividend is greater then the divisor. for example...
3 divided by 15 ---> let x=3/15
when i do this in the shell environment it gives me an output of 0.
please help me.
thanks. (3 Replies)
Hi All,
I'm reasonably new to UNIX, and am having problems with a TSHELL script that I am using. The script is intended to cycle through a loop, and then divide the number in the counter by 10 and store the result in another variable. I am missing something simple here, but cannot work it out... (1 Reply)
How can I modify my awk code to get rid of the divion by zero error message? If I run the script without an input file, it should return error message "Input file missing" but not divison by zero.
Code:
#!/bin/nawk -f
BEGIN {
if (NR == 0)
{print "Input file... (4 Replies)
Hello,
I am searching for a way to calculate for example 10/100 within a shellscript and the result should be 0.1 and not just 0.
Every alternative i tried just results 0
Thank you in advance
2retti (6 Replies)
hi,
The below commands result only the whole number(not giving the decimal values).
pandeeswaran@ubuntu:~$ echo 1,2,3,4|sed 's/,/\//g'|bc
0
pandeeswaran@ubuntu:~$ echo 1000,2,3|sed 's/,/\//g'|bc
166
How to make it to return the decimal values?
Thanks (5 Replies)
Hello,
How can I add a logic to awk to tell it to print 0 when encountering a division by zero attempted? Below is the code. Everything in the code works fine except the piece that I want to calculate read/write IO size. I take the kbr / rs and kbw / ws. There are times when the iostat data... (5 Replies)
I want to implement the below formula with awk oneliner
new_value = ((old_value - old_min) / (old_max - old_min) ) * (new_max - new_min) + new_min
I want to pass the value of old_min and old_min as variable. Here is what I did for this
old_min=$(awk 'BEGIN{a=100000000000}{if ($10<0+a) a=$10}... (2 Replies)
Discussion started by: sammy777888
2 Replies
LEARN ABOUT DEBIAN
plack::app::cgibin
Plack::App::CGIBin(3pm) User Contributed Perl Documentation Plack::App::CGIBin(3pm)NAME
Plack::App::CGIBin - cgi-bin replacement for Plack servers
SYNOPSIS
use Plack::App::CGIBin;
use Plack::Builder;
my $app = Plack::App::CGIBin->new(root => "/path/to/cgi-bin")->to_app;
builder {
mount "/cgi-bin" => $app;
};
# Or from the command line
plackup -MPlack::App::CGIBin -e 'Plack::App::CGIBin->new(root => "/path/to/cgi-bin")->to_app'
DESCRIPTION
Plack::App::CGIBin allows you to load CGI scripts from a directory and convert them into a PSGI application.
This would give you the extreme easiness when you have bunch of old CGI scripts that is loaded using cgi-bin of Apache web server.
HOW IT WORKS
This application checks if a given file path is a perl script and if so, uses CGI::Compile to compile a CGI script into a sub (like
ModPerl::Registry) and then run it as a persistent application using CGI::Emulate::PSGI.
If the given file is not a perl script, it executes the script just like a normal CGI script with fork & exec. This is like a normal web
server mode and no performance benefit is achieved.
The default mechanism to determine if a given file is a Perl script is as follows:
o Check if the filename ends with ".pl". If yes, it is a Perl script.
o Open the file and see if the shebang (first line of the file) contains the word "perl" (like "#!/usr/bin/perl"). If yes, it is a Perl
script.
You can customize this behavior by passing "exec_cb" callback, which takes a file path to its first argument.
For example, if your perl-based CGI script uses lots of global variables and such and are not ready to run on a persistent environment, you
can do:
my $app = Plack::App::CGIBin->new(
root => "/path/to/cgi-bin",
exec_cb => sub { 1 },
)->to_app;
to always force the execute option for any files.
AUTHOR
Tatsuhiko Miyagawa
SEE ALSO
Plack::App::File CGI::Emulate::PSGI CGI::Compile Plack::App::WrapCGI
See also Plack::App::WrapCGI if you compile one CGI script into a PSGI application without serving CGI scripts from a directory, to remove
overhead of filesystem lookups, etc.
perl v5.14.2 2011-11-02 Plack::App::CGIBin(3pm)