C, sh, perl, system(): Can't transfer a return code appropriately: help, pls

10 More Discussions You Might Find Interesting

1. 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 ) { ...

2. 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...

3. 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...

4. 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 ...

5. 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...

6. 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'...

7. 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.

8. 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

9. 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

10. 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?..

LEARN ABOUT CENTOS

string::shellquote

ShellQuote(3)						User Contributed Perl Documentation					     ShellQuote(3)

NAME

       String::ShellQuote - quote strings for passing through the shell

SYNOPSIS

	   $string = shell_quote @list;
	   $string = shell_quote_best_effort @list;
	   $string = shell_comment_quote $string;

DESCRIPTION

       This module contains some functions which are useful for quoting strings which are going to pass through the shell or a shell-like object.

       shell_quote [string]...
	   shell_quote quotes strings so they can be passed through the shell.	Each string is quoted so that the shell will pass it along as a
	   single argument and without further interpretation.	If no strings are given an empty string is returned.

	   If any string can't be safely quoted shell_quote will croak.

       shell_quote_best_effort [string]...
	   This is like shell_quote, excpet if the string can't be safely quoted it does the best it can and returns the result, instead of dying.

       shell_comment_quote [string]
	   shell_comment_quote quotes the string so that it can safely be included in a shell-style comment (the current algorithm is that a sharp
	   character is placed after any newlines in the string).

	   This routine might be changed to accept multiple string arguments in the future.  I haven't done this yet because I'm not sure if the
	   strings should be joined with blanks ($") or nothing ($,).  Cast your vote today!  Be sure to justify your answer.

EXAMPLES

	   $cmd = 'fuser 2>/dev/null ' . shell_quote @files;
	   @pids = split ' ', `$cmd`;

	   print CFG "# Configured by: ",
		       shell_comment_quote($ENV{LOGNAME}), "
";

BUGS

       Only Bourne shell quoting is supported.	I'd like to add other shells (particularly cmd.exe), but I'm not familiar with them.  It would be
       a big help if somebody supplied the details.

AUTHOR

       Roderick Schertler <roderick@argon.org>

SEE ALSO

       perl(1).

perl v5.16.3							    2010-06-11							     ShellQuote(3)

Shell Programming and Scripting