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Shell Programming and Scripting
Unix Shell Script to ping systems & make a log
Post 302578349 by psychoTHEIST on Thursday 1st of December 2011 10:41:10 AM
12-01-2011
Thanks a Lot !!!
Thanks 'Zaxxon, Spellbound, Mikelking'.. 
Since, I'm new to Unix/Linux Shell-scripting and this forum - kindly bear w/ me, wherever you find me a (dumb) rookie!
________________________________________________________
My overall aim is :
1. To ping my office-network..
2a. Create a log for successful pings and unsuccessful ones..
>> till here - i'm done<<
2b. Create a DNS kinda thingy..
>> done - but, i'm using 'if-else' here (..plz don't laugh..) <<
>> my boss said, rather than 'if-else', use a file - where <<
>> from you import all the names for particular IPs.. <<
3. Generate/create a Network-Outage report, that gives the timestamps for
whenever the ping was unsuccessful for that particular IP (as rightly mentioned by 'Zaxxon')..
4. Question arises - what's the need for successful IPs..!?
Answer - I need to run network-related commands on those successful IPs,
to generate another log that gives me all the system-related-info (such as Memory/Disk-usage, N/W-usage, blah! blah! blah!) of/for those particular (successful) IPs..
[in short - have to make my own NMS (n/w mgmt. sys.) for my company ]
________________________________________________________
My problem :
1. I'm not good at googling.. :'(
2. I've a few commands, like :
vmstat, netstat, nslookup, traceroute, ifconfig, df, du, iostat, iptables, chkconfig, etc.
but these work for my system (not all f 'em) and i need to sit on my system
and use the above commands (or, similar) on all the systems on the n/w via. IPs..
3. As of now, the bit I'm struggling w/ is:
using 'grep' to fetch the IP from the same line where I'm grepping - "unreachable host"..
________________________________________________________
~!!~Cheers~!!~
Since, I'm new to Unix/Linux Shell-scripting and this forum - kindly bear w/ me, wherever you find me a (dumb) rookie!
________________________________________________________
My overall aim is :
1. To ping my office-network..
2a. Create a log for successful pings and unsuccessful ones..
>> till here - i'm done<<
2b. Create a DNS kinda thingy..
>> done - but, i'm using 'if-else' here (..plz don't laugh..) <<
>> my boss said, rather than 'if-else', use a file - where <<
>> from you import all the names for particular IPs.. <<
3. Generate/create a Network-Outage report, that gives the timestamps for
whenever the ping was unsuccessful for that particular IP (as rightly mentioned by 'Zaxxon')..
4. Question arises - what's the need for successful IPs..!?
Answer - I need to run network-related commands on those successful IPs,
to generate another log that gives me all the system-related-info (such as Memory/Disk-usage, N/W-usage, blah! blah! blah!) of/for those particular (successful) IPs..
[in short - have to make my own NMS (n/w mgmt. sys.) for my company
]________________________________________________________
My problem :
1. I'm not good at googling.. :'(
2. I've a few commands, like :
vmstat, netstat, nslookup, traceroute, ifconfig, df, du, iostat, iptables, chkconfig, etc.
but these work for my system (not all f 'em) and i need to sit on my system
and use the above commands (or, similar) on all the systems on the n/w via. IPs..
3. As of now, the bit I'm struggling w/ is:
using 'grep' to fetch the IP from the same line where I'm grepping - "unreachable host"..
________________________________________________________
~!!~Cheers~!!~
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LEARN ABOUT DEBIAN
bosskill
BOSSKILL(8) System Manager's Manual BOSSKILL(8) NAME
bosskill - send a signal to your boss, or terminate your boss SYNOPSIS
bosskill [ -signal ] <bossname> DESCRIPTION
bosskill sends the TERM (terminate, 15) signal to the boss with the specified bossname. If a signal name or number preceded by `-' is given as the first argument, that signal is sent instead of terminate. The killed boss must be in the system administrator's supervisory chain. The following is a list of all signals with names as in the include file <signal.h>: SIGHUP 1 hangup. Forces bossname to re-read his/her job description and figure out that he/she knows squat about sysadmin work or life, in general. SIGINT 2 interrupt. Prevents the bossname from interrupting the sysadmin for one hour. SIGQUIT 3 quit. Causes the boss to quit his/her job with no explanation. SIGILL 4 illegal instruction. Makes the boss believe the last instruction he/she gave was illegal, so he/she withdraws it. SIGTRAP 5 trace trap. Display the exact location of the boss. SIGABRT 6 abort. Makes the boss go home and try again tomorrow. SIGKILL 9 kill. Game over. SIGBUS 10 bus error. Boss's transportation fails on the way to work. SIGSEGV 11 segmentation violation. Boss realizes he/she is trying to do something for which he/she is not quailified and stops. SIGSYS 12 bad argument. Boss loses. SIGPIPE 13 smoke pipe. Boss samples some green leafy substance and mellows out. SIGALRM 14 alarm. Boss is startled and falls over. Best used when boss is walking next to his/her boss. SIGTERM 15 termination signal. Boss is fired. BUGS
Sending a SIGABRT to a boss that is already home will cause him/her to walk aimlessly in circles for two hours. HISTORY
Written by Eric L. Pederson <eric@bofh.org.uk>. 27 September 1995 BOSSKILL(8)