I have hundreds of files where I need to change a portion of its text.
For example, I want to replace every instance of "http://" with "rtmp://" .
The files have the .txt extention and are spread across several folders and subfolder.
I basically am looking for a way/script that goes trough every single folder/subfolder and every single file and if it finds inside that file the occurrence of "http" to replace it with "rtmp".
You can do this with a combination of find and sed:
find . -type f -name \*.txt -exec sed -i.bak 's|http://|rtmp://|g' {} +
This will create backups of each file. I suggest you check a few to make sure it did what you want, then you can delete them using
find . -name \*.bak -delete
find . -type f -name '*.txt' -exec sed -i.bak 's|http://|rtmp://|g' {} +Here's a zsh function I use to do this:
change () {
from=$1
shift
to=$1
shift
for file in $*
do
perl -i.bak -p -e "s{$from}{$to}g;" $file
echo "Changing $from to $to in $file"
done
}
It makes use of the nice Perl mechanism to create a backup file and modify the nominated file. You can use the above to iterate through files thus:
zsh$ change http:// rtmp:// **/*.html
or just put it in a trivial #!/bin/zsh script (I just use zsh for the powerful globbing)
