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grep specific ipaddress from a file

 
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# 1  
Old 11-19-2011
Question grep specific ipaddress from a file
All,
Iam new to unix and i have 1 requirement, can anyone help me please
I have provided the file below, i will be having similar files in 100+clients systems. i want to check the the ip address "192.168.208.40" and if it is present then i should get a mail alert, if the ip address is not present then i should not get an alert

Please let me know if you need any other details
Code:
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. 
#
#      102.546.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host
127.0.0.1       localhost
# Set the a.b.c values according to the value        
-- More  --
# in the ControlPannel->Network Applet !                  
#a.b.c.d.1        S1                                   
#a.b.c.d.2        S2                                      
#a.b.c.d.3        S3         
#a.b.c.d.10       LFS10                                     
#a.b.c.d.111     POS1                                      
#255.255.255.0  SUBNETMASK                                
#
255.255.240.0     SUBNETMASK                              
166.70.1.1.     TS09735ISS01 MFFS001                         
166.70.1.2       TS09735ISS02 MFFS002
166.70.0.1       LFtrhS10 RSTU6000
#                                                         
# Camelot Server                                          
192.168.208.40  test.gw.camelotinteractive.com
#                        
#
172.21.178.75   pvuksavsec005                             
172.21.178.101  pvuksavsum021        
#                                                 
#

Last edited by Scott; 11-19-2011 at 06:48 AM.. Reason: Code tags
# 2  
Old 11-20-2011
Re: grep specific ip address
Do you mean to script a test? Maybe try this:

grep "192.168.208.40" /etc/hosts >/dev/null && mail userX < /etc/hosts

So, if the "grep" is successful ("&&") then mail "userX" the file.
 
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