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Top Forums Shell Programming and Scripting Script to find available IP address Post 302969045 by rdrtx1 on Thursday 17th of March 2016 10:03:03 AM
Old 03-17-2016
try something like:
Code:
echo "1" | awk '
{
   c=split(ENVIRON["APACHE"], apache, "\n");
   d=split(ENVIRON["IFCONFIG"], ifconfig, "\n");

   for (i=1; i<=c; i++) {apa[apache  [i]]=apache[i]  ; all[apache  [i]]=apache[i]  ; }
   for (i=1; i<=d; i++) {ifc[ifconfig[i]]=ifconfig[i]; all[ifconfig[i]]=ifconfig[i]; }

   for (i in all) {
      if (i in ifc && i in apa) common[i]=i;
      if (i in ifc && !(i in apa)) ifc_only[i]=i;
      if (!(i in ifc) && i in apa) apa_only[i]=i;
   }

   for (i in common  ) print "Common IPs      : " i;
   for (i in apa_only) print "In APACHE only  : " i;
   for (i in ifc_only) print "In IFCONFIG only: " i;
}
'

 

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ENVIRON(3P)						     POSIX Programmer's Manual						       ENVIRON(3P)

PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond- ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux. NAME
environ -- array of character pointers to the environment strings SYNOPSIS
extern char **environ; DESCRIPTION
Refer to exec and the Base Definitions volume of POSIX.1-2008, Chapter 8, Environment Variables. COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol- ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan- dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html . Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html . IEEE
/The Open Group 2013 ENVIRON(3P)
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