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 page. 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:

now how can i do this replacement??

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).

Answer 2

Try this:

ls | grep "php" > files.txt
for file in $(cat files.txt); do
    sed 's/catch/send/g' $file > TMPfile.php && mv TMPfile.php $file
done

Answer 3

perl -pi -e 's/old/new/g' *.php

Answer 4

sed -i.bak 's/old/new/g' *.php

to do it recursively

find /path -type f -iname '*.php' -exec sed -i.bak 's/old/new/' "{}" +;

Answer 5

You are using Unicode apostrophes (RIGHT SINGLE QUOTATION MARK - U2019) instead of ASCII (0x27) apostrophes around your sed command argument.