Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: C, sh, perl, system(): Can't transfer a return code appropriately: help, pls
Top Forums Shell Programming and Scripting C, sh, perl, system(): Can't transfer a return code appropriately: help, pls Post 302412454 by alex_5161 on Monday 12th of April 2010 02:54:49 PM
Old 04-12-2010
C, sh, perl, system(): Can't transfer a return code appropriately: help, pls
I am using a perl-script from C-code, executing it by the 'system(..)' comand.

The problem is to return the perl-return code to the C correctly.

Default the 'system()' shell is Bourne: sh

My try: (perl_src.c_pl - the perl script; t_sys - C-program with system() call (I will show it after this block.))
Code:
> perl_src.c_pl ${fl} || { echo "$?, wrong;"; }
Can't use an undefined value as a symbol reference at ./perl_src.c_pl line 254, <$sdx> line 1013.
2, wrong;
>
>   # now execute the same command by the C-with system();
> t_sys "perl_src.c_pl ${fl} || { echo \"$?, wrong;\"; } "
Can't use an undefined value as a symbol reference at perl_src.c_pl line 254, <$sdx> line 1013.
0, wrong;

 executed command: perl_src.c_pl ../data/sdx4-1K.dat || { echo "0, wrong;"; }
 RETURN: 0
>

(the t_sys.c is:
Code:
> cat t_sys.c
#include <stdio.h>
main ( int argc, char* argv[] )
{
  char *cmd=argv[1];
  int rt=system(cmd);
  printf ("\n executed command: %s\n RETURN: %d\n", cmd, rt);
}
>

)

The problem is in the '$?' that is not correct in system() after the perl script is processed.

What I am doing wrong?
How I can transfer the correct perl return code to the C code?

Thnks!
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

perl "system" cmd return values..

perl 5.6.1: when i try a "system" command(with if loops for $?), i get this: child exited with value 1 what is meant by this $? values and what does it meant if it returns 1?.. (0 Replies)
Discussion started by: sekar sundaram
0 Replies

2. Solaris

transfer data to a remote system from the tape

i need to retrieve the data from tape on to a remote system.how should i go about it can anyone please help.......its urgent (1 Reply)
Discussion started by: jack123
1 Replies

3. Programming

Return code from system()

Hi, Can any one help me in knowing how can I get the return codes/Error codes when using the system() command to fork a command? Regards, MK (1 Reply)
Discussion started by: mradulkaushik
1 Replies

4. UNIX for Dummies Questions & Answers

Pls guide me in learning in Perl Module and packages

Hi, It is very urgent. Pls guide me in learning Perl Module and the Packages. Eventhough i tried in the google, I didnt get upto my expectations. Pls guide me how to create , build Module and the package. Many Thanks. (3 Replies)
Discussion started by: Yamini Thoppen
3 Replies

5. UNIX for Dummies Questions & Answers

to pick up the Return Code ( RC) from the mailx command and return it to SAS uisng 's

Hi All, Can anyone please let me know the syntax / how to pick up the Return Code ( RC) from the mailx command and return it to SAS uisng 'system()' function and '${?}'. I am in a process to send the mail automatically with an attachment to bulk users. I have used 'Mailx' and 'Unencode'... (0 Replies)
Discussion started by: manas6
0 Replies

6. Shell Programming and Scripting

Assistance pls - pipe error: Too many open files in system

When I run a bash script in the customer system, it throws the warning and script exits Exec '/root/sample.sh' @ hostname-- OK (warn) /root/sample.sh: pipe error: Too many open files in system /root/sample.sh: n + : syntax error: operand expected (error token is " ") Exec... (5 Replies)
Discussion started by: vidhyamirra
5 Replies

7. Shell Programming and Scripting

How to delete already existing data in a file using perl? Pls help me!!

Dear Friends, I need urgent help from u.. I have two files,file1 & file 2.. file1 have a existing data of file2.So i want to delete those existing datas from file1 (which contain the data from file1) My file1 like this rs39348 1 1045729 A G 0.1791 0.2054 0.84 ... (3 Replies)
Discussion started by: sureshraj
3 Replies

8. Shell Programming and Scripting

How to get the return code of subroutines executed as standalone as command line in Perl ?

How to do I get the return code of a subroutine in a perl module if invoke the subroutine as standalone, I have an module say TestExit.pm and in that i have a subroutine say myTest() which is returns 12, if i were to call the subroutine from command line like CASE:1 ( Without an explict... (2 Replies)
Discussion started by: ennstate
2 Replies

9. Shell Programming and Scripting

Transfer file from UNIX to MFT system

Hello , I need to write a script that by using scp transfer a csv file from UNIX to a MFT system (MFT is similar to a winscp) with the help of a private/public key. problem is we are not suppose to generate a private key that will be provided to use by an Application team. Can anybody help me... (0 Replies)
Discussion started by: Monika08
0 Replies

10. Shell Programming and Scripting

[solved] awk: return code from system() always 0 ??

Hi all, I currently have the following problem: In an awk script, I am calling a predifend function from the END{} and handing over a command string. This string arrives flawless and is executed like this: function send_msg( cmd_str ) { ... (7 Replies)
Discussion started by: zaxxon
7 Replies

LEARN ABOUT CENTOS

locale::script

Locale::Script(3)					User Contributed Perl Documentation					 Locale::Script(3)

NAME

       Locale::Script - standard codes for script identification

SYNOPSIS

	  use Locale::Script;

	  $script  = code2script('phnx');		      # 'Phoenician'
	  $code    = script2code('Phoenician'); 	      # 'Phnx'
	  $code    = script2code('Phoenician',
				 LOCALE_CODE_NUMERIC);	      # 115

	  @codes   = all_script_codes();
	  @scripts = all_script_names();

DESCRIPTION

       The "Locale::Script" module provides access to standards codes used for identifying scripts, such as those defined in ISO 15924.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 15924
       four-letter codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying scripts. A code set may be specified using either a name, or a constant
       that is automatically exported by this module.

       For example, the two are equivalent:

	  $script = code2script('phnx','alpha');
	  $script = code2script('phnx',LOCALE_SCRIPT_ALPHA);

       The codesets currently supported are:

       alpha, LOCALE_SCRIPT_ALPHA
	   This is a set of four-letter (capitalized) codes from ISO 15924 such as 'Phnx' for Phoenician.  It also includes additions to this set
	   included in the IANA language registry.

	   The Zxxx, Zyyy, and Zzzz codes are not used.

	   This is the default code set.

       num, LOCALE_SCRIPT_NUMERIC
	   This is a set of three-digit numeric codes from ISO 15924 such as 115 for Phoenician.

ROUTINES

       code2script ( CODE [,CODESET] )
       script2code ( NAME [,CODESET] )
       script_code2code ( CODE ,CODESET ,CODESET2 )
       all_script_codes ( [CODESET] )
       all_script_names ( [CODESET] )
       Locale::Script::rename_script  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Script::add_script  ( CODE ,NAME [,CODESET] )
       Locale::Script::delete_script  ( CODE [,CODESET] )
       Locale::Script::add_script_alias  ( NAME ,NEW_NAME )
       Locale::Script::delete_script_alias  ( NAME )
       Locale::Script::rename_script_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::add_script_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::delete_script_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.unicode.org/iso15924/
	   Home page for ISO 15924.

       http://www.iana.org/assignments/language-subtag-registry
	   The IANA language subtag registry.

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).
	  Copyright (c) 2001-2010 Neil Bowers
	  Copyright (c) 2010-2013 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.16.3							    2013-06-03							 Locale::Script(3)
All times are GMT -4. The time now is 12:59 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy