sed - replace a particular text in all the files using single line shell command

Question

I have a renamed js file which I have to call in each of my php pages. Now I want to replace that old name with the new one using shell. what iam using is this:

sed -i ’s/old/new/g’ *

but this is giving the following error:

sed: -e expression #1, char 1: unknown command:

How can I do this replacement?

question from:https://stackoverflow.com/questions/2522677/replace-a-particular-text-in-all-the-files-using-single-line-shell-command

Answer 1

There are probably less verbose solutions, but here we go:

for i in *; do sed -i 's/old/new/g' "$i"; done

Mind you, it will only work on the current level of the file system, files in subdirectories will not be modified. Also, you might want to replace * with *.php, or make backups (pass an argument after -i, and it will make a backup with the given extension).