I have created an executable Perl script file using the below command.
pp -x -o output.exe test.pl
The exe file was successfully generated. But when I extract the file using the below command I am able to see the source code.
unzip output.exe
Here I want to protect my Perl script. Even when I extract the file using PAR::Packer that should ask password to extract the file.
Please suggest your views on this.
Thanks in advance.
Related
I get the following error:
Can't load '...\AppData\Local\Temp\par-6e72616f\cache-20221205133501\5743946b.xs.dll' for module GD:
load_file:
The specified module could not be found at <embedded>/DynaLoader.pm line 193.
at <embedded>/PAR/Heavy.pm line 140.
(Line breaks added for readability.)
Here is the file t2.pl:
use GD;
Here is the command to convert it to an exe (I use a batch file that timestamps it):
pp -T 20221205133501 -o t2_20221205133501.exe t2.pl
On my laptop, the exe works, but on a barebones Citrix environment it fails.
My environment:
Strawberry Perl v5.32.1 built for MSWin32-x86-multi-thread-64int
GD v2.73
I know the file is simple, but that one line is enough to cause the crash.
The file it complains about exists and is located where it is looking.
I have looked and is looks like I need to add -m GD, or -l xxx to make it work. I tried adding all the dll files I could find for GD, but failed.
I have a corporate environment so I can't really use anything that depends on external programs not in Windows 10. pp_simple depends on wxpar which I do not have. I have used:
objdump -x C:\Strawberry\perl\vendor\lib\auto\GD\GD.xs.dll | find "DLL"
which got me a list of DLLs, and I did try using them with -l.
From Re: Par with strawberry-Perl
There are likely missing DLLs that need to be added to the pp call
using the --link option.
Finding these manually can be a pain, so have a look at pp_autolink or
pp_simple (the former is mine, but adapted from the latter).
https://github.com/shawnlaffan/perl-pp-autolink
https://www.perlmonks.org/?node_id=1148802
Running Lubuntu -
Beginner Perl programmer
Script is XXX.pl located at ~/projects/XXX/XXX.pl
First line is the shebang
#!/usr/bin/perl
Permission to run is set to Anyone.
In directory ~/projects/XXX, the command
~/projects/XXX$ perl XXX.pl
works as desired, but the command
~/projects/XXX$ XXX.pl
Fails with XXX.pl: command not found
What am I missing ?
The two usual options to execute your Perl script are:
perl XXX.pl
or
./XXX.pl
Both ways assume that your current working directory contains the script XXX.pl, otherwise it won't work.
As already pointed out by jm666 in the comments, you can usually not execute a program or script from your current working directory without prepending ./, primarily because of security reasons. Now, you may wonder why it's necessary.
Explanation:
Your shell uses the contents of an environment variable called $PATH to find out about where external commands (non-builtin programs) are located in your filesystem. If you want to see what's in $PATH, just type the following in your shell:
echo $PATH
Now you can see that the $PATH variable does NOT contain your current working directory. The consequence is that your shell is not able to find the program XXX.pl. By prepending ./ you instruct the shell to execute the program which comes after.
But there are two requirements if you want to execute your Perl script with ./script.pl:
The script has to be executable (check with ls -l)
The first line (shebang line) has to be #!/path/to/your/perl because your shell needs that information to find the perl interpreter in order to run your script
However, #1 and #2 are NOT required when you execute your script with
perl XXX.pl
because it invokes the perl interpreter directly with your script.
See how to make Perl scripts executable on Linux and make the script itself directly executable with chmod for some more details.
Can the script be found?
Is . in your path? If it's not, add it to your path, or use ./XXX.pl instead of XXX.pl.
Can the script be executed?
Do you have execute permission to the file? Fix using chmod u+x XXX.pl.
Is the interpreter correct?
which perl will tell you which interpreter is used when you use perl XXX.pl. That's the path that should be on your shebang (#!) line.
i am a writing csh script that invokes a perl script. The perl script loads some .pm files but one of the .pm file is giving errors, i do not know perl scripting, please help.
Can't exec "uname": No such file or directory at /grid/cic/common/bin/../modules/plat.pm line 67.
uname is not in the executing user's path. You'll have to change the user's permissions or do a setuid.
I am trying to write my first test case in perl with the help of Test::Simple module.
I have saved the file with .t extension now when i am trying to run this file on windows system then it says windows can not open this file.
I had googled about this and what i found is for running this file you should make a new directory with name /t and keep this file to there.
http://perlmeme.org/tutorials/writing_test_harness.html
I have tried this also but still it is not working.
Can any body gives me some tips.
following is my Test cases :
#!/usr/bin/perl -w
use Test::Simple tests => 2;
ok( 1 + 1 == 2 );
ok( 2 + 2 == 5 );
A .t file in Perl is just a Perl script. The .t is just there to let you know that it's a test script instead of something else. The file extension and directory structure really doesn't matter, it's there just to help you can keep your environment clean.
To run a Perl script on Windows, from a command line, simply type perl <script name>. Make sure that you have a Perl executable installed on your system as Windows does not come with one by default, and make sure it is in your path. If the script you want to run is not in your current directory, make sure to specify the path to the script.
In the URL you gave it says:
Now because 'dot-T' files are just normal Perl scripts, you can run them as such -
perl t/Monger.t
Is it a typo in your post, you wrote /t as a directory to keep your test files in - it should be t/, so just a directory relative to where you are. (That's "just" a convention.)
I have a text file myfile.txt which I encrypt using 7zip GUI Tool. So that it generates an encrypted archive myfile.7z
Now, my question is, how can I decrypt this file using 7za.exe command line tool and not the GUI tool. I need to add this functionality in my code to be able to decrypt files using 7zip command line exe, please tell me what is the command to decrypt this myfile.7z encrypted archive using 7zip command line tool?
well finally i figured it out. Using something like this would work: