Shell Script inside perl script

Question

I have a perl script which is working fine, but then I wanted to add some shell script in it. I tried to google but I don't know the exact word. Is it embedded programming? So this is what I know.

We can write assembly code in a C file like this:

*****
C - code
int a=10;
char *p;
asm {       //here is the secondary or embedded language (assembly code)
assembly code...
ldaa 1;
push;
}

back to C...
print( "this works");

I just want to do something along these lines, but with perl as the main language and shell script being the secondary or embedded language.

Thank you everyone

You could construct a string that had valid shell commands in it then use system to execute them: perldoc.perl.org/functions/system.html — Hunter McMillen
– Hunter McMillen, Commented Jun 26, 2013 at 14:05

Bitwise · Accepted Answer · 2013-06-26 14:21:51Z

1

Is this what you are looking for?

$exec_string = <<EXEC;
echo this is my shell script
ls > tmp1
ls > tmp2
EXEC

system($exec_string)

EXEC can be substituted by any word (e.g. SHELL, SCRIPT, whatever).

answered Jun 26, 2013 at 14:21

Bitwise

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9 Comments

ban Over a year ago

and $exec_string is just another perl variable here?

Hunter McMillen Over a year ago

Yes, you can use it like any other scalar.

ban Over a year ago

and one last thing...is this called embedded shell script or somethins else?

Bitwise Over a year ago

@sush basically you are just creating a multi-line string, storing it in a variable and executing it. You can do whatever you want with this string - e.g. you can print it instead of executing it.

ban Over a year ago

yes but i just want to know what the process is called...so people understand me when I open my mouth

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