Re: [CentOS] replace multiple string

On 2011-09-23 19:47, madunix@gmail.com wrote:

Hi

I would like to use a bash script that searches files and subdirectories name in a directory /var/ww/html/web for a specific string, and when it finds the search string, replaces the string (old1) with new string (new1), and so on old2 with new2 ....oldn with newn.

replace_string.sh #!/bin/bash for db in $(find /var/www/html/web -name * -exec) do sed -e "s/old1/new1/" \ sed -e "s/old2/new2/" \ ... sed -e "s/oldn/newn/" $db

A more efficient way to perform sed is

sed -e "s/old1/new1/" \ -e "s/old2/new2/" \ ... -e "s/oldn/newn/" $db

or

sed -e "s/old1/new1/ ; s/old2/new2/" .. $db

Other hints for efficient nash shell scripts.. http://hacktux.com/bash/script/efficient