getIP() {
    ipconfig | grep "IPv4 Address" | sort | head -1 | cut -d ":" -f 2 \
        | sed -e "s/ *\\([0-9.]*\\).*/\\1/" 
}


#
# the following four commands should print IP address 4 times
#
getIP
+ getIP
+ ipconfig
+ grep 'IPv4 Address'
+ sort
+ head -1
+ cut -d : -f 2
+ sed -e 's/ *\([0-9.]*\).*/\1/'
10.4.22.98

print $(getIP)
+ getIP
+ ipconfig
+ grep 'IPv4 Address'
+ sort
+ head -1
+ cut -d : -f 2
+ sed -e 's/ *\([0-9.]*\).*/\1/'
+ print 10.4.22.98
10.4.22.98

ipconfig | grep "IPv4 Address" | sort | head -1 | cut -d ":" -f 2 \
    | sed -e "s/ *\\([0-9.]*\\).*/\\1/"
+ ipconfig
+ grep 'IPv4 Address'
+ sort
+ head -1
+ cut -d : -f 2
+ sed -e 's/ *\([0-9.]*\).*/\1/'
10.4.22.98

print $(ipconfig | grep "IPv4 Address" | sort | head -1 | cut -d ":" -f 2 \
    | sed -e "s/ *\\([0-9.]*\\).*/\\1/")
+ ipconfig
+ grep 'IPv4 Address'
+ sort
+ head -1
+ cut -d : -f 2
+ sed -e 's/ *\([0-9.]*\).*/\1/'
+ print 10.4.22.98
10.4.22.98

exit
+ exit