Script help

Hello,

Below given is a sample /etc/hosts file, where "cache01h-t1" is the hostname of a linux machine.

# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
#::1            localhost6.localdomain6 localhost6
127.0.0.1       localhost.localdomain localhost
172.31.23.50    cache01h-t1
172.45.32.13    xenserv1.tcpromo.com
172.42.31.12    appserv1.tcpromo.com

Now using a script, i would like change the file as given in the snippet. Basically i want to make couple of changes.
1.  Add one additional line "172.31.27.72    tcprod.local    dc01h.tcprod.local" at the end.
2.  The line which contains the hostname of the system (here it is: 172.31.23.50    cache01h-t1) should be appended with the entry "<hostname>.tcprod.local"  (here it is: 172.31.23.50    cache01h-t1 cache01h-t1.tcprod.local)
Please note the hostname of the machine can be obtained by executing the command `hostname`.

Please help me.

Thanks,
AshokStart Free Trial

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# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
#::1            localhost6.localdomain6 localhost6
127.0.0.1       localhost.localdomain localhost
172.31.23.50    cache01h-t1 cache01h-t1.tcprod.local
172.45.32.13    xenserv1.tcpromo.com
172.42.31.12    appserv1.tcpromo.com   
172.31.27.72    tcprod.local    dc01h.tcprod.local