Hi,
Consider a flat file abc.conf contains some rows. Each row contains the directory name with full path. now I want to find a particular file in every directory which are mentioned in the abc.conf file. How it can be done through unix shell script. (2 Replies)
Hi,
I am trying to find the content of file using grep and find command and list only the file names
but i am getting entire file list of files in the directory
find . -exec grep "test" {} \; -ls
Can anyone of you correct this (2 Replies)
Sun Solaris Unix Question
Haven't been able to find any solution for this situation. Let's just say the file names listed below exist in a directory. I want the find command to find all files in this directory but at the same time I want to eliminate certain file names or files with certain... (2 Replies)
I am having n files in a directory i want to read all the file names from the script file .It is better if any one provide a sample script.
Elaborating the scenario:
i am having n number of sql files in a directory i am running all the sql files from a single script.
sqlplus... (4 Replies)
dear all.
how can i copy a list of files with different names into others directory have the same name
like i have 3 files
10_10
10_10_11
10_10_11_12
and i have 3 directories
10_10
10_10_11
10_10_11_12
how can i make a loop to cp this files into the directory have the same name like... (0 Replies)
dear all.
how can i copy a list of files with different names into others directory have the same name
like i have 3 files
10_10
10_10_11
10_10_11_12
and i have 3 directories
10_10
10_10_11
10_10_11_12
how can i make a loop to cp this files into the directory have the same name like... (31 Replies)
Hi all,
I need a shell script to write into a .txt file the no of files in a directory with extension and separated by comma in between. For eg, a directory contains files like
a.csv
b.csv
c.csv
d.csv
Then the output in the output.txt file should be like
a.csv,b.csv,c.csv,d.csv
... (3 Replies)
Dears,
Would you please help on following bash script:
I want to get the most recent file named alfaYYYYMMDD.gz in one directory:
for example:
in directory /tmp/
ls -ltr
alfa20130715.gz
holding.gz
alfa20130705.gz
sart.txt
merge.txt.gz
alfa20130802.gz
my result shoud be... (1 Reply)
Hi ,
I'm trying to list the files and output is written to a file. But when I execute the command , the output file is being listed. How to exclude it ?
/tmp
file1.txt
file2.txt
ls -ltr |grep -v '-' | awk print {$9, $5} > output.txt
cat output.txt
file1.txt
file2.txt
output.txt (8 Replies)
Discussion started by: etldeveloper
8 Replies
LEARN ABOUT DEBIAN
plack::builder
Plack::Builder(3pm) User Contributed Perl Documentation Plack::Builder(3pm)NAME
Plack::Builder - OO and DSL to enable Plack Middlewares
SYNOPSIS
# in .psgi
use Plack::Builder;
my $app = sub { ... };
builder {
enable "Deflater";
enable "Session", store => "File";
enable "Debug", panels => [ qw(DBITrace Memory Timer) ];
enable "+My::Plack::Middleware";
$app;
};
# use URLMap
builder {
mount "/foo" => builder {
enable "Foo";
$app;
};
mount "/bar" => $app2;
mount "http://example.com/" => builder { $app3 };
};
# using OO interface
my $builder = Plack::Builder->new();
$builder->add_middleware('Foo', opt => 1);
$app = $builder->mount('/app' => $app);
$app = $builder->to_app($app);
DESCRIPTION
Plack::Builder gives you a quick domain specific language (DSL) to wrap your application with Plack::Middleware subclasses. The middleware
you're trying to use should use Plack::Middleware as a base class to use this DSL, inspired by Rack::Builder.
Whenever you call "enable" on any middleware, the middleware app is pushed to the stack inside the builder, and then reversed when it
actually creates a wrapped application handler. "Plack::Middleware::" is added as a prefix by default. So:
builder {
enable "Foo";
enable "Bar", opt => "val";
$app;
};
is syntactically equal to:
$app = Plack::Middleware::Bar->wrap($app, opt => "val");
$app = Plack::Middleware::Foo->wrap($app);
In other words, you're supposed to "enable" middleware from outer to inner.
INLINE MIDDLEWARE
Plack::Builder allows you to code middleware inline using a nested code reference.
If the first argument to "enable" is a code reference, it will be passed an $app and is supposed to return another code reference which is
PSGI application that consumes $env in runtime. So:
builder {
enable sub {
my $app = shift;
sub {
my $env = shift;
# do preprocessing
my $res = $app->($env);
# do postprocessing
return $res;
};
};
$app;
};
is equal to:
my $mw = sub {
my $app = shift;
sub { my $env = shift; $app->($env) };
};
$app = $mw->($app);
URLMap support
Plack::Builder has a native support for Plack::App::URLMap with "mount" method.
use Plack::Builder;
my $app = builder {
mount "/foo" => $app1;
mount "/bar" => builder {
enable "Foo";
$app2;
};
};
See Plack::App::URLMap's "map" method to see what they mean. With builder you can't use "map" as a DSL, for the obvious reason :)
NOTE: Once you use "mount" in your builder code, you have to use "mount" for all the paths, including the root path ("/"). You can't have
the default app in the last line of "builder" like:
my $app = sub {
my $env = shift;
...
};
builder {
mount "/foo" => sub { ... };
$app; # THIS DOESN'T WORK
};
You'll get warnings saying that your mount configuration will be ignored. Instead you should use "mount "/" => ..." in the last line to set
the default fallback app.
builder {
mount "/foo" => sub { ... };
mount "/" => $app;
}
Note that the "builder" DSL returns a whole new PSGI application, which means
o "builder { ... }" should normally the last statement of a ".psgi" file, because the return value of "builder" is the application that
actually is executed.
o You can nest your "builder" block, mixed with "mount" (see URLMap support above):
builder {
mount "/foo" => builder {
mount "/bar" => $app;
}
}
will locate the $app under "/foo/bar" since the inner "builder" block puts it under "/bar" and it results a new PSGI application which
is located under "/foo" because of the outer "builder" block.
CONDITIONAL MIDDLEWARE SUPPORT
You can use "enable_if" to conditionally enable middleware based on the runtime environment. See Plack::Middleware::Conditional for
details.
SEE ALSO
Plack::Middleware Plack::App::URLMap Plack::Middleware::Conditional
perl v5.14.2 2012-05-17 Plack::Builder(3pm)