Using System command

9mohit2 has asked for the wisdom of the Perl Monks concerning the following question:

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Re: Using System command
by 9mohit2 (Sexton) on Oct 04, 2016 at 06:22 UTC

my $cmd = "cd C:\\ABC\\";
$cmd .= "pdftotext -layout R1.pdf";
system($cmd);
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And the Error i am getting is ---System cannot get the specifies path.

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Re^2: Using System command

by Discipulus (Canon) on Oct 04, 2016 at 08:07 UTC

$cmd

cd C:\\ABC\\pdftotext -layout R1.pdf
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Probably is not what you want to execute.

Perl has a builtin to change directory: chdir

In the command line, two commands have to been concatenated with & or && (NB: the latter && only execute the second command if the previous was succesfull ms odcs)

See a more userfriendly explaination at ss64.com for details.

There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

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Re^3: Using System command

by 9mohit2 (Sexton) on Oct 04, 2016 at 09:06 UTC

Tried the below code

my $cmd = "cd C:\\ABC\\";
my $cmd1 = "pdftotext -layout R1.pdf";
system($cmd&&$cmd1);
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But the error this time is "'pdftotext' is not recognized as an internal or external command, operable program or batch file"

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Re^4: Using System command

by Corion (Patriarch) on Oct 04, 2016 at 09:13 UTC

Re^5: Using System command

by 9mohit2 (Sexton) on Oct 05, 2016 at 05:46 UTC

Re^4: Using System command

by choroba (Cardinal) on Oct 04, 2016 at 09:14 UTC

Re^2: Using System command

by Athanasius (Archbishop) on Oct 04, 2016 at 07:51 UTC

Hello 9mohit2,

If you want to run two system commands like this, you either need to run them separately:

system('cd C:\\ABC\\');
system('pdftotext -layout R1.pdf');
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or else combine them using a syntax recognised by the command prompt. For example, this works for me on Windows:

perl -wE "system('cd .. & dir');"
#                 Note: ^
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But there’s no need to use system to change the current working directory; use Perl’s built-in chdir function.

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

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Re^3: Using System command

by choroba (Cardinal) on Oct 04, 2016 at 08:24 UTC

> run them separately

Would it help in this case? The cd in the first system wouldn't change the current directory for the script, only for the fork, so the next system would run in the previous directory. Or is cd global on Windows?

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,
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Re^4: Using System command

by Athanasius (Archbishop) on Oct 04, 2016 at 08:34 UTC


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