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need a quick basic shell script help

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# 1  
Old 11-22-2007
need a quick basic shell script help
im trying to run the below if command

ifconfig -a |grep 10.100.120.21

gives me below output
inet addr:10.100.120.21 Bcast:10.100.120.255 Mask:255.255.255.0

i just want a basic shell which says if above exists then continue

how would i do this?
# 2  
Old 11-22-2007
Code:
#!/bin/sh

ifconfig -a |grep 10.100.120.21 
if test "$?" = "0"
then
     echo I found the address
else
     echo I did not find the address
fi

# 3  
Old 11-22-2007
Hi Porter,
What OS is ` ifconfig -a ` used in, doesn't work for HP-UX.
# 4  
Old 11-22-2007
thanks that worked -ifconfig -a is used to find ethernet addresses
# 5  
Old 11-22-2007
Quote:
Originally Posted by Cameron
Hi Porter,
What OS is ` ifconfig -a ` used in, doesn't work for HP-UX.
Solaris, NetBSD, Linux ... it's fairly common. It does the command for all interfaces.
# 6  
Old 11-22-2007
Cheers porter.
Thought I was missing something there for a moment. Smilie
# 7  
Old 11-22-2007
Code:
[[ ! -z "$(ifconfig -a | grep 10.100.120.21)" ]] && echo Exists

Smilie
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