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Full Discussion: can't get this code to work
Top Forums UNIX for Dummies Questions & Answers can't get this code to work Post 45012 by jono on Saturday 13th of December 2003 03:45:28 PM
Old 12-13-2003
Computer think this is what I have! but not sure it'll work

Code:
#!/bin/sh

for a in `cat ipaddresses`
do 
   if
    /usr/sbin/ping $a|grpe -ic alive
    break
   else
mail "email address" <<!!!
message
!!!
fi
done

ok I am thinking that this will find the first ip address that didn't return the alive value and exit or if all IP addresses ping then send an e-mail is this right?/?//?


the file is called ipaddresses and contains several ip addresses in $1 example I need it to check each ipaddress!

IPADDRESSES (file name)

160.60.224.1
160.60.224.2
160.60.224.3
160.60.224.4
160.60.224.5

Regards
Jono

added code tags for readability --oombera

Last edited by oombera; 02-20-2004 at 10:47 AM..
 

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getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME
getusershell, setusershell, endusershell - get legal user shells SYNOPSIS
#include <unistd.h> char *getusershell(void); void setusershell(void); void endusershell(void); DESCRIPTION
The getusershell() function returns a pointer to a legal user shell as defined by the system manager in the file /etc/shells. If /etc/shells does not exist, the following locations of the standard system shells are used in its place: /bin/bash /bin/csh /bin/jsh /bin/ksh /bin/pfcsh /bin/pfksh /bin/pfsh /bin/sh /bin/tcsh /bin/zsh /sbin/jsh /sbin/pfsh /sbin/sh /usr/bin/bash /usr/bin/csh /usr/bin/jsh /usr/bin/ksh /usr/bin/pfcsh /usr/bin/pfksh /usr/bin/pfsh /usr/bin/sh /usr/bin/tcsh /usr/bin/zsh /usr/xpg4/bin/sh The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells. The setusershell() function rewinds the file or the list. The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells. RETURN VALUES
The getusershell() function returns a null pointer on EOF. BUGS
All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved. SunOS 5.10 30 Aug 2004 getusershell(3C)
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