Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: System call failed with 127 .. after 500 times when called in loop
Top Forums UNIX for Advanced & Expert Users System call failed with 127 .. after 500 times when called in loop Post 302588595 by Corona688 on Monday 9th of January 2012 11:58:33 AM
Old 01-09-2012
I don't think the number of processes would limit it. system() waits for the process it creates to complete, and nothing inside that script ought to be leaving anything behind.

That doesn't mean fork isn't failing -- I just can't imagine why it would be.

Unless you actually want it to buffer, everything you print with printf() should end with \n, not begin with it, since an \n on the end will cause it to print immediately and not buffer.

You might try perror("error code was "); before you print the exit status, to see if errno contains anything illuminating after system() fails.

---------- Post updated at 10:58 AM ---------- Previous update was at 10:54 AM ----------

A process dying with code 127 usually means it was killed by a signal of some sort. Something from the outside may be killing them, or they may be exceeding some sort of resource limit and being killed.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Session request failed (Called name not present)

I have the following shell script to map a drive to a windows machine: echo Enter password: stty -echo read passwd stty echo mount -t smbfs -ousername=myusername,password=$passwd //192.168.2.5/sharename /mnt/mountname It works fine and the share mounts, but for some reason I get this... (4 Replies)
Discussion started by: Spetnik
4 Replies

2. BSD

Deny logon for x hours if login failed x times

Hello, I have a small inquiry. Sometimes, my good friend, Charlie Root, sends me security notifications that a possible breakin attempt has occured. It looks like this: Oct 29 06:58:17 cigva sshd: reverse mapping checking getaddrinfo for 180.144.164.220.broad.sm.yn.dynamic.163data.com.cn ... (2 Replies)
Discussion started by: brightstorm
2 Replies

3. Shell Programming and Scripting

call a passwd file to a script multiple times

Hello everybody, I have a requirement in my script.. When i'am executing a script, it'll ask a passwd of some service account.. I need to pass it to the script through a zipped file when it asks for it. The script can be executed by more people many number times. So for securty purpose, it... (1 Reply)
Discussion started by: raghu.iv85
1 Replies

4. Shell Programming and Scripting

To call a Oracle sql file 1000 times

Hi Guys, Even though, i have called db2 sql file earlier, this is my first time to call a oracle sql file. I need to make a database(oracle) connection and then call the sql file in a loop. Can you please help me out. Thanks for your help and time. Regards, Magesh (4 Replies)
Discussion started by: mac4rfree
4 Replies

5. Programming

parent called more times - fork - C language

Hi gurus can you explain following lines of code ? #include <stdio.h> #include <stdlib.h> #include <errno.h> #include <unistd.h> #include <sys/types.h> #include <sys/wait.h> int main(void) { pid_t pid; int rv; switch(pid = fork()) { case -1: ... (7 Replies)
Discussion started by: wakatana
7 Replies

6. UNIX Desktop Questions & Answers

for loop (001 to 500)

hey, how do i create a for loop that runs for i from 001 to 500 ? i need that the zero prefix will remain so when i print "i" it will look like so: 001 002 . . 008 009 . . 058 059 . . 500 please advise. (2 Replies)
Discussion started by: boaz733
2 Replies

7. UNIX for Dummies Questions & Answers

shell program- how many times a function is called

We have a program source C and is required to indicate how many times each function is called from the C program. also print the line number where there is a call. I've tried something like this: #!/bin/sh for i in $*;do if ! then echo $i is not a C file. else echo $i... (0 Replies)
Discussion started by: oana06
0 Replies

8. Shell Programming and Scripting

Reset while loop to loop same file multiple times

Hi, I want to read file multiple times. Right now i am using while loop but that is not working. ex. While read line do while read line2 do echo stmt1 #processing some data based on data., done < file2.txt done < file1.txt # This will have 10... (4 Replies)
Discussion started by: tmalik79
4 Replies

9. Shell Programming and Scripting

Bash script from makefile - it is called each time i call make

I've created a tag in the makefile: mytag: $(shell ${PWD}/script.sh) When i do: make clean - the script is executed When i perform make or make mytag the script is again executed with the output: make: Nothing to be done for mytag What i want ? I want script.sh to be executed only... (0 Replies)
Discussion started by: Pufo
0 Replies

10. Shell Programming and Scripting

awk call in bash function called with arugments not working, something lost in translation?

Hello, I have this awk code in a bash script to perform a find and replace task. This finds one unique line in a file and substitutes the found line with a replacement. #! /bin/bash # value determined elsewhere total_outputs_p1=100 # file being modified... (5 Replies)
Discussion started by: LMHmedchem
5 Replies

LEARN ABOUT SUSE

mlm

FBB::mlm(3bobcat)                                             OFoldStream manipulator                                            FBB::mlm(3bobcat)

NAME

       FBB::mlm - Manipulator modifying left margins of OFoldStream objects

SYNOPSIS

       #include <bobcat/ofoldstream> or
       #include <bobcat/ofoldstreambuf>
       Linking option: -lbobcat

DESCRIPTION

       The  mlm  class  implements  a  manipulator that can be inserted into OFoldStream objects to modify the stream's left margin by a requested
       amount. The request cannot result in a negative left margin value. If a negative left margin would be the arithmetic result of the  request
       then left margin 0 will silently be used.

       Depending  on  the  tab-setting  of  the  OFoldStream  the  inserted value represents the number of blank space characters or the number of
       tab-characters that will be added to the left margin.

       The request will be processed at the next newline character or std::flush or std::endl manipulator that is inserted into the stream.  If  a
       line  is  still empty once an mlm object and a flush manipulator are inserted into the stream then the new left margin will be effective at
       the next word inserted into that line (cf., the example section below)

       A bad_cast exception is thrown when the manipulator is inserted into an ostream that is not using a OFoldStreambuf buffer.

NAMESPACE

       FBB
       All constructors, members, operators and manipulators, mentioned in this man-page, are defined in the namespace FBB.

INHERITS FROM

       -

CONSTRUCTOR

       o      mlm(int addValue):
              The standard copy constructor is available.

MEMBER FUNCTIONS

       There are no public or protected member functions in this class.

EXAMPLE

           #include <iostream>
           #include <bobcat/ofoldstream>

           using namespace std;
           using namespace FBB;

           int main()
           {
               OFoldStream out(cout, 0, 80);
               out << "hello world (left margin is 0)" << mlm(4) << "
"
                      "this uses a 4 character wide left margin
" <<
                       mlm(-10) << flush <<
                       "left margin -6 changed to 0, active on this line
";
               return 0;
           }

FILES

       bobcat/mlm - defines the class interface

SEE ALSO

       bobcat(7), manipulators(3bobcat), lm(3bobcat), ofoldstream(3bobcat)

BUGS

       None Reported.

DISTRIBUTION FILES

       o      bobcat_3.01.00-x.dsc: detached signature;

       o      bobcat_3.01.00-x.tar.gz: source archive;

       o      bobcat_3.01.00-x_i386.changes: change log;

       o      libbobcat1_3.01.00-x_*.deb: debian package holding the libraries;

       o      libbobcat1-dev_3.01.00-x_*.deb: debian package holding the libraries, headers and manual pages;

       o      http://sourceforge.net/projects/bobcat: public archive location;

BOBCAT

       Bobcat is an acronym of `Brokken's Own Base Classes And Templates'.

COPYRIGHT

       This is free software, distributed under the terms of the GNU General Public License (GPL).

AUTHOR

       Frank B. Brokken (f.b.brokken@rug.nl).

libbobcat1-dev_3.01.00-x.tar.gz                                      2005-2012                                                   FBB::mlm(3bobcat)
All times are GMT -4. The time now is 02:42 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy