Linux substitute string

Linux command line search and replace string

> grep -rl "old string" . | xargs sed -i 's/old string/new string/g'

Source: php-quick-fix.blogspot.com

Linux substitute string

#replace all string occurence
sed -i 's/old-text/new-text/g' input.txt 

#replace all string occurence and create new file
sed -i 's/old-text/new-text/g' input.txt > newfile.txt

#see link 
#https://www.cyberciti.biz/faq/how-to-use-sed-to-find-and-replace-text-in-files-in-linux-unix-shell/

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