extracting part of the path

if i have a fully qualified path nams stored in a variable and i want to extract only a part of it.What should i use?

example:

$area_path=templatedata\eGeekZoneTest\DT1\data\data1;
And want to extract templatedata\eGeekZoneTest\DT1

Find more posts tagged with

Comments

Adam Stoller

if i have a fully qualified path nams stored in a variable and i want to extract only a part of it.What should i use?

example:

$area_path=templatedata\eGeekZoneTest\DT1\data\data1;
And want to extract templatedata\eGeekZoneTest\DT1

What I would do - and I'm assuming you want everything up-to-but-not-including the data sub-directory - is:

...
$area_path =~ tr|\\|/|; # fix slashes
$area_path =~ s|/data/.*$||;
...

If you want to maintain area_path and create a different variable with the extraction, then:

...
(my $apath = $area_path) =~ tr|\\|/|; # fix slashes
$apath =~ s|/data/.*$||;
...

This is pretty basic perl stuff - if this is really what you needed help with, I suggest picking up a copy of either Learning Perl or Programming Perl (both are O'Reilly publications - the former for someone who is new to scripting, the latter for someone who knows scripting but is new to Perl)

kaalraa

if i have a fully qualified path nams stored in a variable and i want to extract only a part of it.What should i use?

example:

$area_path=templatedata\eGeekZoneTest\DT1\data\data1;
And want to extract templatedata\eGeekZoneTest\DT1

Can use any of the following, however you should be known what you have as input to segragate the parts:

1. Regular expression like $area_path=templatedata\eGeekZoneTest\DT1\data\data1;
$area_path =~ m/(.*)\/DT1/data/data1/;
$area_path = $1;

2. Split the path using slash and if you are known how many index are to be ommitted OR rindex till what you need.

Adam Stoller

Can use any of the following, however you should be known what you have as input to segragate the parts:

1. Regular expression like $area_path=templatedata\eGeekZoneTest\DT1\data\data1;
$area_path =~ m/(.*)\/DT1/data/data1/;

This is exactly why I always make sure to fix the slashes first and always use forward-slashes. The above code is broken.

ISCBorisB

This is exactly why I always make sure to fix the slashes first and always use forward-slashes. The above code is broken.

There are cases where you would like to keep OS original convention whatever it may be. Simple regex class serves well in such case:
$area_path =~ m|(.*)[\\/]DT1[\\/]data[\\/]data1|;

Adam Stoller

There are cases where you would like to keep OS original convention whatever it may be. Simple regex class serves well in such case:
$area_path =~ m|(.*)[\\/]DT1[\\/]data[\\/]data1|;

That may be true - but those cases are rare - and at least you've taken the step of changing the default delimeter.

GA_TestGroup2.rptdesign