Kill -3 Pid > /tmp/process.txt Not Working?

Hi, I know that it is possible to get the last background pid using the $! command, however when I use it in my QT application I got a wrong result. Below follows an example where this procedure works
Code:

[linux@localhost ~]$ (sleep 6 && echo "A test") &
[1] 3312
[linux@localhost ~]$ echo $!
3312
[linux@localhost ~]$ A test

Now my Qt application, where I got a wrong result:
Code:

./dbsync &>/dev/null &
[1] 5047
[linux@localhost comm5]$ echo $!
5047

but using the ps command it is possible to verify that the pid related to the right process is not the 5047 but 5050.
Generally it is the process that comes with the command Code:

echo $!

added of two.

I use QCoreApplication in my program. I do not know if it has something to do with this error.

Any advice is welcome

System Info:

I have normal user in CentOS 7 whose name is "mostafa" (the name of the account).

I naturally have another user called root with all privileges. User "mostafa" is put into sudoers file, too.

The OS is installed in VmWare, so the system is all mine.

Problem:

Now I create a file with touch file.sh and put a command in it, but when I want to run it with Code:

sudo ./file.sh

, an error is shown that the command Code:

./file.sh

does not exist. But if I Code:

 sudo chmod 777 ./file.sh

then it gets run. My question is that, why should I use Code:

chmod 777

when I myself have created the file, and I am in sudoers.

Can anyone explain me why shuold I still use Code:

sudo chmod 777

when the creator of the file is me.

Hi guys,

I am looking to write a script where I need to process many sets of transactions.
I want to process the set if $ 1 == "01" field $5 = "W", and $ 1 == "07" field $3 = "YY" otherwise copy set to output.

Example of the input file:

Code:

01 08 77 78  W  9890
02 08 66 68 0 8554
07 08  YY  85 9 7545
01 08 99 87 X 8787
04 09 85 85 4 8758
09 87 88 78 7 6584
10 84 ZZ 99 8 9887

A new set is always starting with $1 == "01".
Script should only process first set because its 5th value is "W" and put "MATCHED" in the end.
and copy the unmatched set "X" as it is to output.

Code:

Example of output file:
 01 08 77 78 W 9890
02 08 66 68 0 8554
07 08 YY 85 9 7545
MATCHED 
 01 08 99 87 X 8787
04 09 85 85 4 8758
09 87 88 78 7 6584
10 84 ZZ 99 8 9887 

and so on..
thanks for your help

I follow the URL to install awstats , the installation process seems successful .

http://thelinuxfaq.com/90-how-to-ins...os-fedora-rhel

But when I try to run the report by
Code:

http://192.168.0.1/awstats/awstats.pl?config=mydomain.com ,

it pops the error.

Code:

Not Found

The requested URL /awstats/awstats.pl was not found on this server.

then I create /awstats/awstats.pl in DocumentRoot directory , now when I re-try to run the report , it display the program code of the awstats.pl but not show the report , would advise what is wrong ?

Hi All,

I have two scripts, the aim of these two scripts is, to check whether a particular script is running or not, if it wont runs, then throw a mail.

How i Achieved this output is, I wrote first script.

I created an infinite while loop which performs below steps

1. It creates a touch file
2. Triggers the script which needs to be monitored if its working or not.
3. Removes the touch file.

If the second step fails, then the remove file command will not happen and the script will stuck there itself.

I created an another script which checks the creation time of the touch file and if it is more than ten minutes, it means the second step in the first script is hanged, which also means that particular script is not working.

So if the creation time is more than 2 minutes the second script will throw a mail.

Below are the two scripts.

Code:

#!/bin/ksh



userid="chansd"

filename="/apps/log/check.txt"

while true ;do
touch $filename
pass=`/apps/eDMZ/call_st.ksh $userid`
sleep 20
rm $filename
done

Below script checks the file creation time and throws email if it is older than 2 minutes
Code:

#!/bin/ksh


filename="/apps/log/check.txt"

if [ -f "${filename}" ]
then
if test "`find $filename -mmin +2`"
then
echo "script is not working ! Please act on it" | mail -s "Script  is not working" Example@mail.com
fi


else

        exit 1

fi

What im going to do is

1. I am going to run the first script in background so it runs forever.
2. I am going to run the second script in cron forevry 5 mins to check the file creation time.

3. So if the first script hangs . I will kill the process using process id and after the issue resolves with the inner script, I will run the main script again.

I am new to Linux, Please let me know if this approach will work as expected.

Hello,

I updated my debian 7 wheezy few days ago, and now vnc server is not working.
Code:

http://prntscr.com/6glfu8

Log File:
Code:

http://paste.ubuntu.com/10596182/

I recently changed from Debian 7 to 8 which now uses systemd as the default init.
I had a init file that worked fine (see below) and works fine when directly invoked
Code:

$ sudo /etc/init.d/iptables start

however fails when indirectly invoked
Code:

$ sudo service iptables start
Job for iptables.service failed. See 'systemctl status iptables.service' and 'journalctl -xn' for details.

Code:

$ systemctl status iptables.service
 iptables.service - LSB: Iptable setup
   Loaded: loaded (/etc/init.d/iptables)
   Active: failed (Result: exit-code) since Mon 2015-05-25 17:18:37 PDT; 5s ago
  Process: 4825 ExecStart=/etc/init.d/iptables start (code=exited, status=203/EXEC)

Code:

$ journalctl -xn
No journal files were found.

I don't understand the error except that it "failed" and is loaded.
I have disabled and re-enabled the service with these commands:

Code:

sudo systemctl disable iptables
sudo systemctl enable iptables

which completes successfully but did not fix the problem.


INIT file
Code:

### BEGIN INIT INFO
# Provides:          iptables
# Required-Start:    $network $remote_fs $syslog
# Required-Stop:     $network $remote_fs $syslog
# Should-Start:      $portmap
# Should-Stop:       $portmap
# X-Start-Befo     nis
# X-Stop-After:      nis
# Default-Start:     2 
# Default-Stop:      1
# X-Interactive:     false
# Short-Description: Iptable setup
# Description:       Sets iptable rules
#                    
### END INIT INFO

ipt=/sbin/iptables

loadrules() {

if [ -e /etc/iptables_ruleset ]; then iptables-restore < /etc/iptables_ruleset && exit 0; fi

$ipt -F
$ipt -X

# Policies and Chains
$ipt -P INPUT DROP
$ipt -P FORWARD DROP
$ipt -P OUTPUT ACCEPT
$ipt -N SSH
$ipt -N WEBSERVER

$ipt -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
$ipt -A INPUT -i lo -j ACCEPT # Allow loopback

# Services
$ipt -A INPUT -p tcp -m multiport --dport 443,80 -j WEBSERVER # WEBSERVER chain 
$ipt -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW -j SSH # Jump to SSH chain
$ipt -A INPUT -p tcp -s 192.168.1.1/24 --dport 445 -j ACCEPT # samba

# Reject message for LAN
$ipt -A INPUT -s 192.168.1.1/24 -j REJECT

# WEBSERVER chain
$ipt -A WEBSERVER -p tcp -m multiport --dport 443,80 -m conntrack --ctstate NEW -j LOG
$ipt -A WEBSERVER -p tcp -m multiport --dport 443,80 -j ACCEPT

# SSH chain
$ipt -A SSH -p tcp --dport 22 -m recent --set --name SSH # Set SSH recent
$ipt -A SSH -p tcp --dport 22 -m recent --name SSH --update --seconds 10 --hitcount 2 --rttl -j LOG # Log if over counter
$ipt -A SSH -p tcp --dport 22 -s 192.168.1.1/24 -m recent --name SSH --update --seconds 10 --hitcount 10 --rttl -j REJECT # Reject from lan if over counter
$ipt -A SSH -p tcp --dport 22 ! -s 192.168.1.1/24 -m recent --name SSH --update --seconds 10 --hitcount 2 --rttl -j DROP # Drop if over counter
$ipt -A SSH -p tcp --dport 22 -j ACCEPT

iptables-save > /etc/iptables_ruleset
}

removerules() {
$ipt -P INPUT ACCEPT
$ipt -P FORWARD ACCEPT
$ipt -P OUTPUT ACCEPT
$ipt -F
$ipt -X
}

restartrules() {
rm /etc/iptables_ruleset
loadrules
}

case "$1" in
	start)
		loadrules
		;;
	stop)
		removerules
		;;
        restart)
                restartrules
                ;;
    	*)
        	echo "Usage: $0 start|stop|restart" >&2
        	exit 3
        	;;
esac

Edit:
Checking /var/log/daemon.log gives me this info:
Code:

May 25 19:13:29 hostname systemd[6004]: Failed at step EXEC spawning /etc/init.d/iptables: Exec format error
May 25 19:13:29 hostname systemd[1]: iptables.service: control process exited, code=exited status=203
May 25 19:13:29 hostname systemd[1]: Failed to start LSB: Iptable setup.
May 25 19:13:29 hostname systemd[1]: Unit iptables.service entered failed state.

Hello,

I am troubleshooting something and I got this problem.

If I do "pstree -p"

It shows,

Code:

        ├─soffice.bin(7734)─┬─{soffice.bin}(7735)
        │                   ├─{soffice.bin}(7736)
        │                   ├─{soffice.bin}(7737)
        │                   └─{soffice.bin}(7743)

However, it does NOT show up in "ps -elf"

Code:

ps -elf | grep soffi
0 S whho      7734     1  0  80   0 - 36435 -      11:14 pts/2    00:00:03 /usr/lib/openoffice/program/soffice.bin -splash-pipe=5
0 S whho      7833  7759  0  80   0 -   751 -      11:21 pts/3    00:00:00 grep soffi

I was wondering if 7735, 7736, 7737, 7743 were really processes. Then I checked /proc, I could cd to /proc/7735, /proc/7736, etc, but I could not ls them out.

I looked at the man page of "pstree", it says,

Code:

Child threads  of a process are found under the parent process and are shown with the process name in curly braces, e.g.

           icecast2---13*[{icecast2}]

So, what does all this mean? Does it mean that 7735, 7736, 7737, 7743 are just threads but not processes? If so, why could I cd to /proc/<id> but not see them in "ps -elf".

Would somebody please help me?

Thanks!

whho

I have CentOS 7 64 bit. I have installed open-vm-tools on it.
I have installed vmplayer using
Code:

./VMware-Player-6.0.1-1379776.x86_64.bundle

Now when I try to open vmplayer on it, it does not load 'Virtual Network Device'
and shows error in terminal
Code:

Failed to build vmnet.  Failed to execute the build command.

When I check status of vmware, it shows
Code:

Module vmnet not loaded

If I try to run
Code:

vmware-modconfig --console --install-all

It gives me following error.
Code:

make: Leaving directory `/tmp/modconfig-2NfFeS/vmnet-only'
Unable to install all modules.

I am not able to open VMplayer, please help me to open it.

Thanks

--Kind Regards
Sam

https://code.google.com/p/wavelet1d/...ar.gz&can=2&q=

The above link is where I downloaded *.cpp(s) and the libraries.

If you "untar" the package, in "examples" directory, there are some demonstration files. What I wanted to do was to make an executable file out of "wavedemo1.cpp".

I modified the code in "wavedemo1.cpp"; Code:

#include "wavelet2d.h"

to Code:

#include "wavelet2s.h"

, then placed the header file "wavelet2s.h" (from /wavelib/src/linuxstatic) and the modified "wavedemo1.cpp" into my working directory.

Inside the working directory, I ran the following command

Code:

gcc -L/home/mario/wavelet/wavelib/linuxstatic -lwavelet2s wavedemo1.cpp -o wavedemo1

Then I get the following error messages.

/usr/bin/ld: skipping incompatible /home/mario/wavelet/wavelib/linuxstatic/libwavelet2s.a when searching for -lwavelet2s
/usr/bin/ld: cannot find -lwavelet2s
collect2: error: ld returned 1 exit status

I'm not sure what went wrong with my approach. This is my first time trying to use libraries on linux and it's giving me really tough times.

I would appreciate your help, please let me know if you need more details to explain things.

Thanks.