Perl Command from Perl Script

[SandyY]

Hi,

I am having one question. I hope it's easy for those who had been doing Perl for long.

Question - I have a perl command line utility for removing ctrl M character from my Sybase BCP file and i want to run this from perl script. I can pass the file name as argument but i do not knwo how to execute the command line interpreter from this perl program


Thanks

 

[Guest_imported]

perl -e command

 

[Coderifous]

Less description could not have been more possible.

Using the system function will let you run a command as if you were at the command line.

my $args = 'file_with_damn_carat_m.txt';
system("perl script_name.pl $args"

$args would be a variable (in your case, the file to be manipulated).

Hope this helps!

--Jim

 

[Guest_imported]

-e

there, anything is possible

 

[Guest_imported]

Yes, if you are calling a perl script from a perl script, u could use the system call, as you could use the system call if you want to execute a sed ar awk command, if you just want to invove the command line intrepreter as you stated, try and use "perl -e expression" (minus the quotes)should allow you to do what you want, this is the same in sed, sed -e will allow the intrepretation and execution of sed commands.

 

[Coderifous]

I humble in your presence whizard1 LOL

--Jim

 

[Guest_imported]

I find that a short, accurate, answer is often the best route, I think you may have mis understood the question,

Q:how to execute the command line interpreter from this perl program

Aerl -e


just because your suggestion of using system made no sense don't get mad, lets all just get along

now bow down to the whizard...jk lol

 

[Coderifous]

Ohhhhhh now I see, in order to execute a command line interpreter FROM a perl program, all you have to do is type:

perl -e name_of_script

Oh, what's this? I must have a bad version of Perl on my computer because it doesn't seem to work for me... no wait, it's merely becuase you're incorrect.

Accuracy and brevity: the key to communication. Unfortunately you seem to have settled for 1 out of 2.

If sandyy has developed a command line utility, she probably know's how to use it. I think she wants to know how to execute it from her script, and your one liner aint it.

Sorry if this also makes no sense to you.

--Jim

 

[Guest_imported]

i guess you could have sold me on :
system("perl -e command"

nice work chiefy

 

[Coderifous]

If the command is a perl script, you don't need the '-e'.

Thanks.

 

[Guest_imported]

sorry man, i'm a little too used to ksh so I'll go back to the unix forum now, cause there ya need the famous '-e' ..but don't you need it if it isn't in a script, and it's just a command you exutute from the command line?..i guess I may have been confused?...give me something

 

[whughey]

I have a similar problem. I have a one line perl command that works perfect from the command line (linux), but when trying to use it in another script with the system command, I get:
sh: syntax error near unexpected token `f)'
sh: -c: line 1: `perl -p -i -e 's/template.com/test.com/g;' 0 10 6 4 3 2 1 0find /home/test/* -type f)'

The command:
perl -p -i -e "s/template.com/test.com/g;" $(find /home/test/* -type f)

I tried the following inside my script:
system ("perl -p -i -e 's/template\.com/test\.com/g;' $(find /home/test/* -type f)"