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Accepted
moata_u
Asked: 2011-03-23 06:52:30 +0800 CST

Replace IP address within a string

  • 772

I'd like to change the IP address in this string with some user input:

rmi.sceduling.service.url=rmi\://192.168.0.19\:1199/ScedulingService

The code should also work if there is no address:

rmi.sceduling.service.url=

It should also be portable, at least to Solaris.

The code I am using at the moment:

value=`grep 'rmi' application.properties \
| awk -F":" '{print $2}' \
| awk -F"\'" '{print $1}'
| cut -d '/' -f 3-5 `

sed -e "s/$value/$host_ip/g" application.properties > file.tmp \
&& mv file.tmp application.properties
bash

2 Answers

  1. Here's a naïve solution:

    sed -i -e "s#rmi\\\\://[[:digit:]]\+\.[[:digit:]]\+\.[[:digit:]]\+\.[[:digit:]]\+#$host_ip#"
    • 2
  2. Best Answer

    A portable solution that should work on both solaris and ubuntu

    ed -s application.properties << EOF
  g/=rmi\\\\:\/\/[^\]*/s||=rmi\\\\://$host_ip|
  w
EOF

    Why are you doing all these edits (in this and several of your other recent questions) on this application.properties file anyway? Seems to me that just writing that file from scratch would be much easier.

    • 1