Solved

How do I sort a file-listing?

Posted on 1998-10-21
6
188 Views
Last Modified: 2010-03-05
I have a script that uses:
  while ($filename = readdir DIR) {
to display a directory's contents. Is there anyway to sort these results in a particular order (i.e. by date?)
0
Comment
Question by:drummond
  • 3
  • 2
6 Comments
 
LVL 84

Expert Comment

by:ozo
ID: 1205596
sub ST(&@){
         my $metric=shift;
         map {$_->[0]}
         sort {$a->[1] cmp $b->[1]}
         map {[$_,&{$metric}]} @_
}

opendir(DIR, $some_dir) || die "can't opendir $some_dir: $!";
for $filename ( ST{(stat"$some_dir/$_")[9]} readdir DIR ){
      print $filename." ".localtime((stat"$some_dir/$filename")[9])."\n"
}

0
 

Author Comment

by:drummond
ID: 1205597
That made it work REALLY well. Now how do I reverse it so that the most recent files are at the top of the list?
0
 
LVL 84

Expert Comment

by:ozo
ID: 1205598
for ( reverse ST{(stat"$some_dir/$_")[9]} readdir DIR ){
}
#or
for ( ST{ ~(stat"$some_dir/$_")[9] } readdir DIR ){
}
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 

Author Comment

by:drummond
ID: 1205599
Everything works perfectly! Now how do I give you the points?
0
 
LVL 2

Expert Comment

by:WileyKat
ID: 1205600
to get the points, ozo should post his answer as an answer instead of a comment. you can then give him the points.
0
 
LVL 84

Accepted Solution

by:
ozo earned 100 total points
ID: 1205601
sub ST(&@){
        my $metric=shift;
        map {$_->[0]}
        sort {$a->[1] cmp $b->[1]}
        map {[$_,&{$metric}]} @_
}

for( ST{ ~(stat"$some_dir/$_")[9] } readdir DIR ){ }
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Many time we need to work with multiple files all together. If its windows system then we can use some GUI based editor to accomplish our task. But what if you are on putty or have only CLI(Command Line Interface) as an option to  edit your files. I…
Email validation in proper way is  very important validation required in any web pages. This code is self explainable except that Regular Expression which I used for pattern matching. I originally published as a thread on my website : http://www…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
This Micro Tutorial will teach you how to censor certain areas of your screen. The example in this video will show a little boy's face being blurred. This will be demonstrated using Adobe Premiere Pro CS6.

864 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

25 Experts available now in Live!

Get 1:1 Help Now