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Top Forums Shell Programming and Scripting Replace a string in all files under a directory and its subdirectories Post 302379620 by EAGL€ on Friday 11th of December 2009 07:25:22 AM
Old 12-11-2009
Replace a string in all files under a directory and its subdirectories

Hello Friends,

I've been trying to write a script which finds a string and change it with another string. For this i want to search all files (with its arguments) under a spesific directory and its subdirectories.

For example lets assume i want to replace an IP= 192.168.0.4 with another IP=192.168.0.10 in all the files under a certain directory and its subdirectories.

Below I search for the IP that I want to change:

Code:
find . -type f -print | xargs grep 192.168.0.4

./dir1/l.txt:192.168.0.4
./dir1/subdir/m.txt:abc 192.168.04xyz

But as you know the rest is the most important part; How to replace the found IP with the other one 192.168.0.10 , for the rest i have tried to use SED and AWK gsub but was unsuccessful.

I will appreciate your helps,
 

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unbound-streamtcp(1)						      unbound						      unbound-streamtcp(1)

NAME
unbound-streamtcp - unbound DNS lookup utility SYNOPSIS
unbound-streamtcp [-unsh] [-f ipaddr[@port]] name type class DESCRIPTION
unbound-streamtcp sends a DNS Query of the given type and class for the given name to the DNS server over TCP and displays the response. If the server to query is not given using the -f option then localhost (127.0.0.1) is used. More queries can be given on one commandline, they are resolved in sequence. The available options are: name This name is resolved (looked up in the DNS). type Specify the type of data to lookup. class Specify the class to lookup for. -u Use UDP instead of TCP. No retries are attempted. -n Do not wait for the answer. -s Use SSL. -h Print program usage. -f ipaddr[@port] Specify the server to send the queries to. If not specified localhost (127.0.0.1) is used. EXAMPLES
Some examples of use. $ unbound-streamtcp www.example.com A IN $ unbound-streamtcp -f 192.168.1.1 www.example.com SOA IN $ unbound-streamtcp -f 192.168.1.1@1234 153.1.168.192.in-addr.arpa. PTR IN EXIT CODE
The unbound-streamtcp program exits with status code 1 on error, 0 on no error. AUTHOR
This manual page was written by Tomas Hozza <thozza@redhat.com>. NLnet Labs Mar 21, 2013 unbound-streamtcp(1)
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