12-05-2019
Please become accustomed to supplying decent and sufficient information whereupon an analysis can be started. Like contents of the EXAMPLE variable, the (meaningful) code around that if construct, your OS and shell versions.
None of your conclusions above can be acknowledged nor disproved due to lack of info. The construct you show checks the process environment to see if it contains the string which is the expanded value of EXAMPLE, be it (part of) a variable name or an assignment string.
Last edited by RudiC; 12-09-2019 at 06:33 AM..
This User Gave Thanks to RudiC For This Post:
10 More Discussions You Might Find Interesting
1. Programming
I'm having difficulty understanding the purposes of using dup/dup2 when involving forks.
for example, if we call fork() once, that is, we are creating a child process. In what cases would we need to use dup or dup2 to duplicate the file descriptors for standard output and standard error? What... (1 Reply)
Discussion started by: Yifan_Guo
1 Replies
2. Shell Programming and Scripting
Hello friends,
i run two scripts manually & they work.
i run them in cron & they don work.
how to match the two env's
1.command line env
2.cron env
i would like cron to use command line env.
Thanks & Regards
Abhijeet (1 Reply)
Discussion started by: abhijeetkul
1 Replies
3. UNIX for Dummies Questions & Answers
Hi Friends,
Can any of you explain me about the below line of code?
mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`
Im not able to understand, what exactly it is doing :confused:
Any help would be useful for me.
Lokesha (4 Replies)
Discussion started by: Lokesha
4 Replies
4. UNIX for Dummies Questions & Answers
What is the purpose of /etc/cron.d? (3 Replies)
Discussion started by: proactiveaditya
3 Replies
5. UNIX for Advanced & Expert Users
Hi All
Can anybody tell me what is the purpose of inv in the below command.
ftp -inv $RFTPSERVER /temp/te.txt << EOF
and << its stands for what..
Thanks (1 Reply)
Discussion started by: raju4u
1 Replies
6. Web Development
(Above from Apache docs).
On my system, using:
SetEnvIf User-Agent Mozilla IsBad=1
Order allow,deny
Allow from all
Deny from env=IsBad ...I see that environment variable is set (using phpinfo()) but the page is still served. No errors in the Apache logs. (1 Reply)
Discussion started by: gnurob
1 Replies
7. Shell Programming and Scripting
I have the following code. I want to remove the --sort=num/num/... and am
using grep to exclude it as shown below:
I have a bit of problem figuring out the use of - at the front
echo "--sort=4/5/6" | grep -ivE '-((sort|group)=+/+(/+)*)$'
Now suppose I want to remove --quiet
I can... (7 Replies)
Discussion started by: kristinu
7 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I have read from the book that , <> causes the file to be used as both input as well as output. Can anyone give me the scenario where <> will be useful?
Thanks (10 Replies)
Discussion started by: pandeesh
10 Replies
9. Shell Programming and Scripting
I have the following line of code that works wonders. I just don't completely understand it as I am just starting to learn regex. Can you help me understand exactly what is happening here?
find . -type f | grep -v '^\.$' | sed 's!\.\/!!' (4 Replies)
Discussion started by: trogdortheburni
4 Replies
10. Shell Programming and Scripting
If I use the grep command for parsing files, does it stop parsing right after it finds the matching pattern or does it continue to parse that document? grep -l "status" *.xml (5 Replies)
Discussion started by: emc^24sho
5 Replies
LEARN ABOUT DEBIAN
cgi::emulate::psgi
CGI::Emulate::PSGI(3pm) User Contributed Perl Documentation CGI::Emulate::PSGI(3pm)
NAME
CGI::Emulate::PSGI - PSGI adapter for CGI
SYNOPSIS
my $app = CGI::Emulate::PSGI->handler(sub {
# Existing CGI code
});
DESCRIPTION
This module allows an application designed for the CGI environment to run in a PSGI environment, and thus on any of the backends that PSGI
supports.
It works by translating the environment provided by the PSGI specification to one expected by the CGI specification. Likewise, it captures
output as it would be prepared for the CGI standard, and translates it to the format expected for the PSGI standard using CGI::Parse::PSGI
module.
CGI.pm
If your application uses CGI, be sure to cleanup the global variables in the handler loop yourself, so:
my $app = CGI::Emulate::PSGI->handler(sub {
use CGI;
CGI::initialize_globals();
my $q = CGI->new;
# ...
});
Otherwise previous request variables will be reused in the new requests.
Alternatively, you can install and use CGI::Compile from CPAN and compiles your existing CGI scripts into a sub that is perfectly ready to
be converted to PSGI application using this module.
my $sub = CGI::Compile->compile("/path/to/script.cgi");
my $app = CGI::Emulate::PSGI->handler($sub);
This will take care of assigning an unique namespace for each script etc. See CGI::Compile for details.
You can also consider using CGI::PSGI but that would require you to slightly change your code from:
my $q = CGI->new;
# ...
print $q->header, $output;
into:
use CGI::PSGI;
my $app = sub {
my $env = shift;
my $q = CGI::PSGI->new($env);
# ...
return [ $q->psgi_header, [ $output ] ];
};
See CGI::PSGI for details.
METHODS
handler
my $app = CGI::Emulate::PSGI->handler($code);
Creates a PSGI application code reference out of CGI code reference.
emulate_environment
my %env = CGI::Emulate::PSGI->emulate_environment($env);
Creates an environment hash out of PSGI environment hash. If your code or framework just needs an environment variable emulation, use
this method like:
local %ENV = (%ENV, CGI::Emulate::PSGI->emulate_environment($env));
# run your application
If you use "handler" method to create a PSGI environment hash, this is automatically called in the created application.
AUTHOR
Tokuhiro Matsuno <tokuhirom@cpan.org>
Tatsuhiko Miyagawa
COPYRIGHT AND LICENSE
Copyright (c) 2009-2010 by tokuhirom.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.
SEE ALSO
PSGI CGI::Compile CGI::PSGI Plack CGI::Parse::PSGI
perl v5.14.2 2012-03-18 CGI::Emulate::PSGI(3pm)