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Full Discussion: Script to kill a process running at a certain port
Top Forums Shell Programming and Scripting Script to kill a process running at a certain port Post 302906772 by baris35 on Monday 23rd of June 2014 11:44:58 AM
Old 06-23-2014
Quote:
Originally Posted by MadeInGermany
This is a start
Code:
port=14001
port_to_pid(){
netstat -lpn | awk '$0~":"p"\\>" {x=$NF; sub(/^[^0-9]*/,"",x); sub(/[^0-9]*$/,"",x); print x; exit}' p="$1"
}

case $1 in
start)
  pid=`port_to_pid $port`
  if [ -n "$pid" ]; then
    echo "already running, pid=$pid"
  else
    ...
  fi
;;
stop)
  pid=`port_to_pid $port`
  if [ -n "$pid" ]; then
    kill "$pid"
  fi
;;
restart) $0 stop; sleep 1; $0 start
;;
esac

Hello MadeInGermany,
Sorry but, how pid nr will understand that vlc1 should be restarted when i run this code?There is no "vlc1" expression in this code. Nicht functioniert.

Boris
 

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LEARN ABOUT CENTOS

pkttyagent

PKTTYAGENT(1)							    pkttyagent							     PKTTYAGENT(1)

NAME

       pkttyagent - Textual authentication helper

SYNOPSIS

       pkttyagent [--version] [--help]

       pkttyagent [--process { pid | pid,pid-start-time } | --system-bus-name busname] [--notify-fd fd] [--fallback]

DESCRIPTION

       pkttyagent is used to start a textual authentication agent for the subject specified by either --process or --system-bus-name. If neither
       of these options are given, the parent process is used.

       To get notified when the authentication agent has been registered either listen to the Changed D-Bus signal or use --notify-fd to pass the
       number of a file descriptor that has been passed to the program. This file descriptor will then be closed when the authentication agent has
       been successfully registered.

       If --fallback is used, the textual authentication agent will not replace an existing authentication agent.

RETURN VALUE

       If the authentication agent could not be registered, pkttyagent exits with an exit code of 127. Diagnostic messages are printed on standard
       error.

       If one or more of the options passed are malformed, pkttyagent exits with an exit code of 126. If stdin is a tty, then this manual page is
       also shown.

       If the authentication agent was successfully registered, pkttyagent will keep running, interacting with the user as needed. When its
       services are no longer needed, the process can be killed.

NOTES

       Since process identifiers can be recycled, the caller should always use pid,pid-start-time when using the --process option. The value of
       pid-start-time can be determined by consulting e.g. the proc(5) file system depending on the operating system. If only pid is passed to the
       --process option, then pkttyagent will look up the start time itself but note that this may be racy.

AUTHOR

       Written by David Zeuthen <davidz@redhat.com> with a lot of help from many others.

BUGS

       Please send bug reports to either the distribution or the polkit-devel mailing list, see the link
       http://lists.freedesktop.org/mailman/listinfo/polkit-devel on how to subscribe.

SEE ALSO

       polkit(8), polkitd(8), pkaction(1), pkcheck(1), pkexec(1)

polkit								     May 2009							     PKTTYAGENT(1)
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