Help with SED

[111101101]

Can somebody use SED or other linux command to write me a script that will change all the IP address in a file to another IP. For example, if i type...

$ replace httpd.conf 12.34.56.78 99.99.99.99

this will replace all the IP in the file httpd.conf from 12.34.56.78 to 99.99.99.99

and it should leave the rest of the file intact.

Thanks.
755

 

[thedaver]

use perl to write file 'subst.pl'

#!/usr/bin/perl -w

while (<>) {
s/12\.34\.56\.78/99\.99\.99\.99/;
print;
}


execute it by

'perl subst.pl < httpd.conf'

it will echo out the modified httpd.conf,
which you could '> httpd.conf.new' as part of the command line.

thus
'perl subst.pl < httpd.conf > httpd.conf.new'

good luck.

Surfinbox.com Business Internet Services - National Dialup, DSL, T-1 and more.

http://www.surfinbox.com/business/

 

[flugh]

Another way to skin the same cat:
perl -pi.bak -e 's/<old ip>/<new ip>/e' httpd.conf

Really ought to escape the periods in the ip address, but it works for a quick and dirty fix. The original file will be copied to httpd.conf.bak too. This is the only perl command I know, and I am so thankful for the day I ran accross it

----
JBR

 

[thedaver]

No Fair Mom! flugh's a better perl programmer that I am!
;-)
Good one!

Surfinbox.com Business Internet Services - National Dialup, DSL, T-1 and more.

http://www.surfinbox.com/business/