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• Perl, time efficient hash

  - by Mike

  Is it possible to use a Perl hash in a manner that has O(log(n)) lookup and insertion? By default, I assume the lookup is O(n) since it's represented by an unsorted list. I know I could create a data structure to satisfy this (ie, a tree, etc) however, it would be nicer if it was built in and could be used as a normal hash (ie, with %)

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• How do I use Perl's chdir operator?

  - by T. Gruhn

  In ksh, I'd use cd /usr/src/sys How should I write it in Perl? A conversion such as cd /usr/src/sys ---> chdir '/usr/src/sys' Maybe the following would be better: execute "chdir '/usr/src/sys' "

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• perl, module variable

  - by Mike

  I don't really understand how scoping works in perl modules. This doesn't print anything. I would like it if running a.pl printed 1 b.pm $f=1; a.pl use b; print $f

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• are there any good timer implementation in perl

  - by Haiyuan Zhang

  I'm looking for good timer implementation in perl. The situation I met is like: I need to keep track of I/O activities of many files and for thoes files keep untouched for enough time a remove action will be taken upon them, so an efficient timer implementation is really vital for the app I'm involved right now. To avoid recreate the wheel, ask you guys for help first.

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• Enable user account in Active Directory from PERL

  - by SCNCN2010

  How to enable user account in Active Directory from PERL if that account is disabled I am using NET::LDAP . How its not working UserAccountControl Attribute

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• perl - getting a value from a map where the key has a dot

  - by imerez

  I have a map in perl which has been dumped into from some legacy code the name of the key has now changed from simply reqHdrs to reqHdrs.bla $rec->{reqHdrs.bla} My problem is now I cant seem to access this field from the map any ideas ? The following is my error Download Script Output: Bareword "reqHdrs" not allowed while "strict subs" in use

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• Perl and hosts file mapping question?

  - by user275633

  All, I have a hosts file that looks like this: 10.10.10.1 myserver1 myserver1alias 10.10.10.2 myserver2 myserver2alias I'm looking for a way using perl to pass in an argument of myserver1 and have it return myserver1alias, likewise if I pass in myserver2 it should return myserver2alias. Any suggestions?

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• How does scoping work in Perl modules?

  - by Mike

  I don't really understand how scoping works in Perl modules. This doesn't print anything. I would like it if running a.pl printed 1 b.pm $f=1; a.pl use b; print $f

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• How do I write Perl object with plugins?

  - by Timmy

  How do I write Perl objects with extensible code? Im thinking drivers, or some configuation, where the user can pass in a string "Classname::Class" or something. Thanks.

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• How do I perform multiple replacements with Perl?

  - by duenguyen

  I have Perl code: my $s = "The+quick+brown+fox+jumps+over+the+lazy+dog+that+is+my+dog"; I want to replace every + with space and dog with cat. I have this regular expression: $s =~ s/\+(.*)dog/ ${1}cat/g; But, it only matches the first occurrence of + and last dog.

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• Print each executed line in Python and Perl programs

  - by Vi

  I know that "bash -x script.sh" will execute script printing each line before actual execution. How to make perl and python interpreters do the same?

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• exctract test in perl

  - by Daziplqa

  I have a file containing the following content 1000 line in the following format: abc def ghi gkl how to write perl script to convert it into : abc ghi ??

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• Perl, foreach order

  - by Mike

  Does Perl's foreach loop operator require that the list items be presented in order? For example my @a=(1,2,3); foreach my $item (@a) { print $item; } will always print 1 2 3? I suspect so, but I can't find it documented.

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• Perl - Compare two files and copy intire line to final.log

  - by user2977141

  I need perl script to compare line from file1 with file2 and copy to final file, something like this: File1.txt: ASPO01 ASPO02 ASPO03 File2.txt: ASPO01 2013-11-10 19hrs ASPO10 2013-11-09 24hrs ASPO02 2013-11-08 10hrs ASPO16 2013-11-05 9hrs ASPO17 2013-11-06 6hrs ASPO03 2013-11-07 15hrs ASPO18 2013-11-02 25hrs ... Search into File2 and copy to final file called final.log, like this: final.txt: ASPO01 2013-11-10 19hrs ASPO02 2013-11-08 10hrs ASPO03 2013-11-07 15hrs Thanks for all good friends can help me!!!

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• perl unpack + pack to php

  - by netcrash

  Hello, How can I do this perl code print unpack ("H*", pack ("B*", "00000000100000012000000" )); in php ? Thank you for any help.

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• What is the function of rand() in Perl?

  - by stordi

  What is the function of rand() in Perl? Can you give me a example of this function?

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• Perl Substitution

  - by Marlin

  hi, I have a variable which stores the path on Windows. I want to replace all the \ with / in the path. for eg. $path = C:\Users\scripts.ps1 Am new to Perl and tried something like $path = s/\//// But it didnt work. can you please help me out....

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• Perl ENV variable contains newline and tab

  - by Michael

  Say I have an environment variable myvar myvar=\tapple\n when the following command will print out this variable perl -e 'print "$ENV{myvar}"' I will literally have \tapple\n, however, I want those control chars to be evaluated and not escaped. How would I achieve it? In the real world $ENV residing in substitution, but I hope the answer will cover that.

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• perl, get directory listing, files only

  - by Mike

  I'm looking for a way in perl to list the files of a directory. Files only, not any directories. Thanks

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• Perl, search array

  - by Mike

  What is the smartest way of searching through an array of strings for a matching string in Perl? One caveat, I would like the search to be case-insensitive so "aAa" would be in ("aaa","bbb")

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• Parsing command line options in Perl

  - by Jay Gridley

  Hi guys, I am parsing command line options in Perl using Getopt::Long. I am forced to use prefix - (one dash) for short commands (-s) and -- (double dash) for long commands (ex. --input=file), but problem is, that there is one special option (-r=) so it is long option for its requirement for argument, but it has to have one dash (-) prefix not double dash (--) like other long options. Is possible to setup Getopt::Long to accept these?

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• Perl, sub with two lists as arguments

  - by Mike

  Is it possible to pass two lists to a sub in Perl , ex sub Foo { my(@list1,@list2) = @_; } I know I could make @_ two lists, with each sublist being the desired argument, I'm just wondering if there is a cleaner way

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• Create comma seperated values in perl

  - by Mike

  Let's say I have a list of elements @list=(1,2,3); #desired output 1,2,3 And I want to print them as comma seperated values. And most importantly, I do not want the last element to have a comma after it. What is the cleanest way to do this in Perl?

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• Preferred unit testing framework for Perl

  - by Mike

  I'm sort of new to Perl and I'm wondering if there a prefered unit testing framework? Google is showing me some nice results, but since I'm new to this, I don't know if there is a clear preference within the community.

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• comparing 2 arrays on perl

  - by qrbaQ

  could someone provide a good /nice solution in perl for comparing 2 arrays (a and b ) which check if every element on array a is founded on array b (and founded only once on array b) ?

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