SYSTEM-CALL statement

Hi experts,
please help to give some detials about below statment:
system-call init-text <p_text> using <p_field> program <program_name>.
and i got one issue with above statement:
system-call init-text p_text using 'SCN_PROJN' program 'SAPDBPSJ'.
it seems that to get field description of 'SCN_PROJN' of logical database 'PSJ'. but after this statement p_text get value as 'CN_PROJN' instead of 'Project Definition'. this issue happens after system upgrade.
please give some suggestion about above issue.
thanks a billion.
Aumas.

SYSTEM-CALL is for SAP internal use only and has been replaced by kernel methods (see ABAP documentation). You should not use this statement as a customer, and if there is a problem with SAP standard code, then check for OSS notes.
Thomas

Similar Messages

Reading output of a system call

Hi,
It appears that java system call does not return a value in Netware OS.
The same code functions flawlessly on other OS'es, eg. linux and windows.
If the following code is run on a Netware (6.5), the following error is
returned:
External App Returned:
java.io.IOException: Bad file number
Does anyone knows how to receive the values from the system call on Netware?
To reproduce the problem, do the following:
1) save the included source code to netware server's sys:java/classes
with a filename ExecuteExternalApp.java
2) compile it issuing a console command:
javac sys:java/classes/ExecuteExternalApp.java
3) execute the application:
java ExecuteExternalApp volumes
This should successfully launch the system command "volumes" but also
would give an error message:
External App Returned:
java.io.IOException: Bad file number
---- Source code
import java.io.*;
public class ExecuteExternalApp{
public static String executeSystemCommand(String command) throws
Exception {
String ret = "";
try
Process process = Runtime.getRuntime().exec(command);
BufferedReader input = new BufferedReader(new
InputStreamReader(process.getInputStream()));
BufferedReader err = new BufferedReader(new
InputStreamReader(process.getErrorStream()));
//InputStreamReader iar = new
InputStreamReader(process.getInputStream());
StringBuffer sb = new StringBuffer();
String line = "";
//while ((line = input.readLine()) != null)
//testi tuleeko yksi rivi
line = input.readLine();
sb.append(line);
input.close();
ret = sb.toString();
catch (Exception err)
ret = err.toString();
return ret;
public static void main(String[] args) throws Exception {
if (args.length > 0){
String output = executeSystemCommand(args[0]);
System.out.println("External App Returned:");
System.out.println(output);
else
System.out.println("Usage: ExecuteExternalApp <command>");

Guenter wrote:
> Hi Jonne,
> Jonne Viljanen <jonne.viljanen@rmv_this.helsinki.fi> wrote in
> news:y%[email protected]:
>
>> Thank you for your effort. I've been trying to write a simple program
>> that would monitor if any cluster resource would be in comatose and in
>> such case, it would try to online the resource on some other cluster
>> node. For this I'd need to run these system commands and parse their
>> output:
>>
>> - "cluster resources" - to see if any resource is in comatose
>>
>> and
>>
>> - "cluster view" - to determine which nodes are online.
>>
>> Also i'd need to run "cluster offline resource" and "cluster online
>> resource node", but for these command I would not need to get the
>> output.
>>
>> I know that my approach is a bit clumsy, but it's beauty is in its
>> simplicity. Novell's engineer suggested that with a bit more effort one
>> could read the data from ldap or cluster related virtual XML files on
>> the _Admin volume. I think that I should investigate the latter
>> approach, since I'd like to avoid handling the ldap authentication. I
>> appreciate any comments and suggestions. Code examples are also greatly
>> welcomed ;-)
> hmmm, well that sounds to me as if the language doesnt matter at all since
> finally you most likely fire your app from cron to do these tasks frequently
> automatically, right? Therefore I'd suggest you take a look at Perl - it
> seems better suited for these tasks; look at sys:/perl/scripts where you find
> Perl scripts which do already some cluster stuff, and AFAICT these make use
> of the _ADMIN volume.
> Additional info and Perl samples can be found with the VFS NDK IIRC:
> http://developer.novell.com/wiki/ind..._File_Services
>
> greetz, Gnter.
>
Hi Gnter,
Thank you for your excellent help. I started to play with the _ADMIN
-volume today. I was amazed to see how much can be done with it. I got
my little cluster watch application almost working in just 1 hour, but
then spent the rest of the day trying to get it fully functional ;-) I
still cannot figure out what is wrong with my code, so I was wondering
if I could get any help from this newsgroup.
I'm able to read the *.xml files and determine the cluster state and all
the information I need. However I dont seem to be able to write the
command files. I'm trying the following:
public void offlineClusterResource(String resourceName) {
String fileName = "_ADMIN:/Novell/cluster/Resource.cmd";
//String logFile = "sys:java/classes/ClusterWorker.log";
String commandLine = "<virtualIO><datastream
name=\"command\"></virtualIO>"+
"<ncsRequest><offline>" +
"<resource>" + resourceName + "</resource>" +
"</offline></ncsRequest>";
//Log("Turning the cluster resource " + resourceName + "
offline!!!", logFile);
try {
//PrintWriter in autoFlush mode
PrintWriter pw = new PrintWriter(new FileWriter(fileName,
false), false);
pw.println(commandLine);
pw.close();
} catch (IOException e) {
System.out.println("Unable to write " + fileName);
It seems not to write anything to _ADMIN:/Novell/cluster/Resource.cmd.
If I set the file to be eg. SYS:/tmp/Resource.cmd -it writes nicely to
the file.
What am I missing here?
Cheers,
Jonne

Solaris 2.6 - System Call faults

Hi Sun Forums.
Machine Description : SunOS serv-sif 5.6 Generic_105181-28 sun4u sparc SUNW,Ultra-Enterprise
Number of CPU's : 4 (400Mhz)
Physical Memory : 5120 Mb
Top Output :
PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND
11115 syb119 2 10 0 506M 498M cpu4 179.6H 24.89% dataserver
5078 syb119 1 0 0 1696K 1408K cpu0 0:00 0.51% top
11113 syb119 2 58 0 506M 498M sleep 146.3H 0.09% dataserver
3592 syb119 2 59 0 1030M 1023M sleep 282.6H 0.07% dataserver
1193 root 1 58 0 7536K 3144K sleep 159:38 0.02% jre
1199 root 1 59 0 3144K 1064K sleep 0:00 0.01% httpd
3596 syb119 2 59 0 1030M 1023M sleep 110.6H 0.01% dataserver
11114 syb119 2 58 0 506M 498M sleep 168.6H 0.00% dataserver
3595 syb119 2 58 0 1030M 1022M sleep 151.6H 0.00% dataserver
1182 root 1 58 0 5128K 2768K sleep 17:53 0.00% jre
1 root 1 58 0 1648K 384K sleep 5:40 0.00% init
19230 syb119 1 58 0 10M 1968K sleep 0:43 0.00% backupserver
1253 root 1 58 0 16M 1624K sleep 0:43 0.00% ecoad
1052 root 18 23 0 4736K 1608K sleep 0:42 0.00% syslogd
1026 root 1 48 0 1904K 1144K sleep 0:41 0.00% inetd
Possible Problem : vmstat
procs memory page disk faults cpu
r b w swap free re mf pi po fr de sr s6 s9 s1 sd in sy cs us sy id
0 0 0 4710944 80856 0 0 392 0 0 0 0 0 0 0 0 3208 512747 1557 49 51 0
The value Faults for System call = 512747 very high value.
The process running in Solaris are working slowly ...
Any idea ?
PID

It is possible that this card may not be compatible with this Solaris
system.
You may want to check these sites out for driver related information:
http://soldc.sun.com/developer/support/driver/
http://soldc.sun.com/developer/support/driver/IO_kit/PCI.html
Thx
Tushar Patel.

Need some information on CALL statement

Hello All,
There is a statement in standard program saplfpaym05 in subroutine read_data as follows
CALL 'C_RSTS_OPEN_READ'
          ID 'HANDLE' FIELD cs_fbhandle-handle
          ID 'CLIENT' FIELD sy-mandt
          ID 'NAME'    FIELD cc_tsnam
          ID 'PART'    FIELD 1
          ID 'CONV'    FIELD ' '
          ID 'BINARY' FIELD 'X'
          ID 'ALLINE' FIELD ' '
          ID 'TYPE'    FIELD 'DATA'
          ID 'RECTYP' FIELD 'U------'
          ID 'CHARCO' FIELD '    '
          ID 'PROM'    FIELD 'I'
          ID 'RC'      FIELD cc_rsts_rc
          ID 'ERRMSG' FIELD cc_rsts_msg.
What exactly is the statement performing? Is it possible to have different results in development system and quality system? Is it anyhow system dependent statements?
Please suggest.
Thanks and Regards,
Sachin

Hi,
CALL -
>   is used to Call a System Function.These calls are called Kernel C system calls .This CALL statements is for SAP internal use only.If SAP wants to allow a customer to use one, they will generally write a released ABAP function module to expose the Kernel Call.
Following are examples for SAP internally used system functions.
C_REMOVE C_RSPO_ASK_FOR_PRIO
C_RSPO_CHECK_TAB_IN_DD
C_RSPO_LAST_ERROR
C_RSPO_PRINTJOB_STATE
C_RSPO_PROCESS_DIALOG
C_RSPO_SPOOL_MESSAGE
C_RSPO_TEST
C_RSTRB_READ_BUFFERED C_RSTRDURA_TO_P6_P6
C_RSTRTIME_TO_P6_P6
C_RSTS_CCC_STAT
C_RSTS_CHECK_TAB_IN_DD
C_RSTS_CLOSE C_RSTS_CREATE_OBJ_FOR_FILE
C_RSTS_INVALID_CCC
C_RSTS_LAST_ERROR
C_RSTS_OBJ_INFO
C_RSTS_OPEN_READ
C_RSTS_OPEN_WRITE
C_RSTS_READ
C_RSTS_REMOVE
C_RSTS_REPAIR_OBJ
C_RSTS_WRITE C_SAPGALLPARAM
Go through the following links:
System Function Calls
http://www.sapnet.ru/viewtopic.php?p=3028
by
Prasad gvk.

I fail to start the sap server with error:Operating system call recv failed

I fail to start the sap server in SAP R3 Management Console and the message in the syslog was :
R/3 Basis System: Operating system call           recv failed (error no. 10053)
Is there any one could tell me how to resolve the problem or give me some advice?I will appreciate him/her very much.Thank you.

trc file: "dev_disp", trc level: 1, release: "620"
Sun May 07 13:14:30 2000
kernel runs with dp version 3(ext=1) (@(#) DPLIB-INT-VERSION-3)
length of sys_adm_ext is 304 bytes
systemid   560 (PC with Windows NT)
relno      6200
patchlevel 0
patchno    674
intno      20020600
pid        3628
***LOG Q00=> DpSapEnvInit, DPStart (00 3628) [dpxxdisp.c   978]
     shared lib "dw_xml.dll" version 674 successfully loaded
     shared lib "dw_xtc.dll" version 674 successfully loaded
     shared lib "dw_stl.dll" version 674 successfully loaded
Sun May 07 13:14:32 2000
WARNING => DpNetCheck: NiAddrToHostCanon() took 2 seconds
Sun May 07 13:14:37 2000
WARNING => DpNetCheck: NiAddrToHost(1.0.0.0) took 5 seconds
***LOG GZZ=> 2 possible network problems detected - check tracefile and adjust the DNS settings [dpxxtool2.c 3212]
MtxInit: -2 0 0
DpShMCreate: sizeof(wp_adm)          12784     (752)
DpShMCreate: sizeof(tm_adm)          1690816     (8412)
DpShMCreate: sizeof(wp_ca_adm)     18000     (60)
DpShMCreate: sizeof(appc_ca_adm)     6000     (60)
DpShMCreate: sizeof(comm_adm)     192000     (384)
DpShMCreate: sizeof(wall_adm)     (22440/34344/56/100)
DpShMCreate: SHM_DP_ADM_KEY          (addr: 001E0040, size: 1977824)
DpShMCreate: allocated sys_adm at 001E0040
DpShMCreate: allocated wp_adm at 001E0560
DpShMCreate: allocated tm_adm_list at 001E3750
DpShMCreate: allocated tm_adm at 001E3778
DpShMCreate: allocated wp_ca_adm at 00380438
DpShMCreate: allocated appc_ca_adm at 00384A88
DpShMCreate: allocated comm_adm_list at 003861F8
DpShMCreate: allocated comm_adm at 00386210
DpShMCreate: allocated ca_info at 003B5010
DpShMCreate: allocated wall_adm at 003B5018
MBUF state OFF
Sun May 07 13:14:38 2000
EmInit: MmSetImplementation( 2 ).
<ES> client 0 initializing ....
<ES> InitFreeList
<ES> block size is 1024 kByte.
Using implementation std
<EsNT> Memory Reset enabled as NT default
<EsNT> EsIUnamFileMapInit: Initialize the memory 2458 MB
<ES> 2457 blocks reserved for free list.
ES initialized.
***LOG Q0K=> DpMsAttach, mscon ( db01) [dpxxdisp.c   9115]
CCMS: Initalizing shared memory of size 20000000 for monitoring segment.
CCMS: start to initalize 3.X shared alert area (first segment).
DpMsgAdmin: Set release to 6200, patchlevel 0
MBUF state PREPARED
MBUF component UP
DpMBufHwIdSet: set Hardware-ID
***LOG Q1C=> DpMBufHwIdSet [dpxxmbuf.c   941]
DpMsgAdmin: Set patchno for this platform to 674
Release check o.K.
Sun May 07 13:15:18 2000
ERROR => W2 (pid 4776) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W2
Sun May 07 13:15:38 2000
ERROR => W5 (pid 4548) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W5
ERROR => W8 (pid 4592) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W8
ERROR => W9 (pid 4584) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W9
ERROR => W12 (pid 4676) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W12
ERROR => W13 (pid 4272) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W13
my types changed after wp death/restart 0xbf --> 0xb7
Sun May 07 13:15:58 2000
ERROR => W4 (pid 4888) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W4
ERROR => W6 (pid 4788) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W6
ERROR => W15 (pid 4596) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W15
Sun May 07 13:16:18 2000
ERROR => W1 (pid 4892) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W1
ERROR => W3 (pid 4904) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W3
ERROR => W7 (pid 4000) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W7
ERROR => W10 (pid 4864) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W10
my types changed after wp death/restart 0xb7 --> 0xb5
Sun May 07 13:16:38 2000
ERROR => W0 (pid 4900) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W0
ERROR => W11 (pid 4500) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W11
ERROR => W14 (pid 4636) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W14
ERROR => W16 (pid 3532) died [dpxxdisp.c   11523]
force unlock of wp_adm mutex W16
my types changed after wp death/restart 0xb5 --> 0x80
DP_FATAL_ERROR => DpEnvCheck: no more work processes
DISPATCHER EMERGENCY SHUTDOWN ***
DpModState: change server state from STARTING to SHUTDOWN
Sun May 07 13:16:42 2000
***LOG Q0M=> DpMsDetach, ms_detach () [dpxxdisp.c   9341]
MBUF state OFF
MBUF component DOWN
***LOG Q05=> DpHalt, DPStop ( 3628) [dpxxdisp.c   7883]

Debug the system-call

hi all,
just a little doubt.
can we debug a system call?
while debugging i reached a point of statement ..
"system-call ict "
i couldnt debug this call and directly got the output.
plz tell me how to debug a sys-call , if at all we can.

The only thing you can try is to switch on system debugging, but I don't think this will work for these kind of calls. On that level debugging is normally forbidden.
System debugging is only set for debugging ABAP system programs, while SYSTEM-CALLS are processed on Kernel level.
P.S. Switch on system debugging: While debugging, go menu->settings (I believe)->switch system debugging on / off.

SYSTEM-CALL CONVERT ID no

Dear Experts,
What is the <no> in the below syntax ?
Where can we get the info for which number is what ..
SYSTEM-CALL CONVERT ID <no>
I need this info for conversion of Binary data to ASCII.
Thanks in advance.
Regards,
Matt.

Hi,
Pls refer the below SAP F1 Help.
Conversion
Note
This statement is for internal use only.
It cannot be used in application programs.
Syntax
CONVERT ID id DATA data ENCODING code ENDIAN endian IGNORE_CERR error N n POSITION position REPLACEMENT rep LEN len BUFFER buf AUX aux TYPE type.
Effect
Text and lines are converted between different formats.
Note
This statement is only provided for use in the conversion classes "CL_ABAP_CONV_...".

How to get swap size by using system call?

How can I get the size of swap.What system call or library Routines can be used? please help me.

Hi,
Threre's an interface called swap_ctl by wich you can get more information related to virtual memory. Here's an example:
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/swap.h>
#include <sys/param.h>
int
main(int argc, char*argv[])
swaptbl_t *st;
int swap_count, i;
long long swap_total=0, swap_avail=0;
long pgsize_in_kbytes = sysconf(_SC_PAGE_SIZE) / 1024L;
if ((swap_count=swapctl(SC_GETNSWP, NULL)) == -1)
perror("swapctl(SC_GETNSWP)"), exit(-1);
if (swap_count == 0)
(void)printf("No swap files/partitions allocated\n"), exit(0);
* Although it's not particularly clear in the documentation, you're
* responsible for creating a variable length structure (ie. the
* array is within the struct rather than being pointed to
* by the struct). Also, it is necessary for you to allocate space
* for the path strings (see /usr/include/sys/swap.h).
st = (swaptbl_t*)malloc(sizeof(int) + swap_count * sizeof(struct swapent));
if (st == NULL)
perror(argv[0]), exit(-1);
st->swt_n = swap_count;
for (i=0; i < swap_count; i++) {
if ((st->swt_ent.ste_path = (char*)malloc(MAXPATHLEN)) == NULL)
perror(argv[0]), exit(-1);
if ((swap_count=swapctl(SC_LIST, (void*)st)) == -1)
perror("swapctl(SC_LIST)"), exit(-1);
for (i=0; i < swap_count; i++) {
swap_total += st->swt_ent.ste_pages * pgsize_in_kbytes;
swap_avail += st->swt_ent.ste_free * pgsize_in_kbytes;
(void)printf("Total swap = %lld available swap = %lld\n",
swap_total, swap_avail);
return 0;
There's a very interesting document about Solaris Kernel/Performance Stats available at http://www.idiom.com/~gford/admin/howto/perf.html. Very interesting.
Hope this helps

Is system call multithread safe?

Dear all
Is system call are multithread safe?
i want to use system call eg (sysinfo)
is it multithread safe?
if you check man sysinfo
you couldnot find if it is multithread safe or not.
no any statement about it
could any of you give me some hints?

what do you mean by, 'would it help'? Help thread safety? No. The method returns quicker because it is native, but it does not impact thread safety (unless you consider a quicker return to some how increase thread safety).

C programming System calls

Ok I am starting to program in C and I would like to make useful apps
but I don't know how to call other programs within linux from C
I'm looking for guides that help on linux "C" programming.
I've tried some guides I googled but I tried their examples and don't get anything
they appear obsolete (1996 or 1999)
Guide I found
Any sugestions?
Thanks

toofishes wrote:Note that calling other programs is not a common occurrence for C programs...nor is that a "system call". A system call is calling a kernel-provided function such as stat or access, not calling another user-space program on the system.
U call other programs with a system call, u can open a file and do operations on it with system calls too.
What he want is a GUI like gtk or a framework

Error during installation of ECC6- system call failed

Dear all,
i encounter the error as below during sap installation. its looks like the ID issue, but this id (fbqadm) is using by me to log into the windows. please help me.
thank
ERROR      2009-03-17 10:07:25.583 [syxxsyshlp.cpp:78]
           syslib::printOSError(const iastring &, int, DWORD, const iastring &, CMessage::eLogMessage)
FSL-00001 System call failed. Error 1326 (Logon failure: unknown user name or bad password.
) in execution of system call 'LogonUser' with parameter (fbqadm, SAPFBWDEV01, *******, LOGON32_LOGON_INTERACTIVE,LOGON32_PROVIDER_DEFAULT,&hUserToken), line (1014) in file (synxccuren.cpp).
TRACE      2009-03-17 10:07:25.813 [iaxxejsbas.hpp:408]
           handleException<ESyException>()
Converting exception into JS Exception ESyException.
TRACE      2009-03-17 10:07:25.813
Function setMessageIdOfExceptionMessage: modlib.jslib.caughtException

problem fix after reboot the server

Error on WAS no. 10054 SAP Basis System: Operating system call

Hi All,
Error on WAS no. 10054 SAP Basis System: Operating system call
we got the following error message in the syslog of the WAS:
SAP Basis System: Operating system call recv failed (error no. 10054)
The system still works. What can we do?
Thanks.
Best Regards,

Hi,
Please check the folloiwng notes
Error no. 10054
34116 - Syslog: "Operating System call xxxx failed"
Thanks
Adil

Jabber for Windows 9.2 call stats

Does anyone know how to view call stats in Jabber for Windows 9.2 (or if it is even possible)?
Thanks, Mike

No. I mean call stats like dropped packets, codec, video resolution etc. I heard from my Cisco SE that Cisco doesn't have any immediate plans to implement this feature, which I think is a terrible oversight. How are we supposed to troubleshoot with call stats? Even an IP phone has ability to do that.

How to call statement's execute function to execute procedure in Oracle?

I made a very simple procedure in oracle logged as internal user.
the procedure as the following:
create or replace procedure temptest
as
begin
insert into indextab(idx) values(100);
commit;
end temptest;
in Java program,I use Oracle's jdbc driver to connect database, still connect as internal user.
I can call statement.executeUpdate("insert into indextab(idx) values(100)"). and 100 row was added in database.
then,I delete this row, try to run procedure in java,
but the call of statement.execute("temptest") throw a exception
the error message is:"java.sql.SQLException: ORA-00900: invalid SQL statement"
then, I write the same procedure in sql server.
all things work right.( I use jdbc-odbc bridge connect to sql server database)
who can tell me what's the reason?
I'm so urgent, please help me as soon as fast, thank you very much

Instead of a Statement object, use a CallableStatement. CallableStatement is the JDBC wrapper for a stored proc. JDBC requires that the vendor specific call be wrapped in a {CALL ....}.
So, your code would look like the following:
Connection con = some connection;
CallableStatement cs = con.prepareCall("{CALL temptest}");
cs.execute();
Take a look at the Javadoc. You can set both IN and OUT parameters using a CallableStatement.

Correct Forum? CGI and Server behaviour on Solaris at system()-call

Hi to you all,
Do not know if i am in the correct forum, but maybe it is a Webserver problem.
I have Sun ONE Webserver 6.1 running on Solaris.
Craete some CGI`s in C.
Now I have a problem with one CGI, which have to call a Shellscript via system() call.
The Client just calls the CGI with some parameters, which will write the informations in a file with some additional informations from a database, after that, the script should be startet and do some printjobs in the background.
The CGI and the Shell-script is working fine. My Problem is, that the system() call always waits, until the ShellScript has finished, so the Webserver send the "data successful written" site after a couple of minutes, it should send it immeditatly to the client, so the session is closed.
I have tried to put the shellscript in background with "&", also with nohup and a second shell script which justs starts the first script, also with all combinations of nohup and "&" for background process.
also i tried with "pclose(popen(SCRIPT,"W");" to call the script, it is always the same, the session will close only, when the script has been finished.
In an other Forum I found an entry, that , however, IPlanet webserver always will do this in this way. The session will be closed, when all called processes has benn fisnished.
Any Ideas to solve my problem?

The web server reads from the CGI program's stdout. It knows the HTTP response is complete when the CGI program closes its stdout.
When you call system(), the child process inherits the CGI program's stdout and keeps it open until it finishes. If you want the child process to run asynchronously from the HTTP response, you should give the child process a new stdout with > /dev/null. (You'll still need to place the child process in the background with &.) Alternatively, you can fork(), close(1), then exec().

SYSTEM-CALL statement

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