Append a text to the end of multiple files in Linux

Question

I need to append the following code to the end to all the php files in a directory and its sub directory:

Answer 1

You can use sed combined with find. Assume your project tree is

    /MyProject/ 
    /MyProject/Page1/file.php
    /MyProject/Page2/file.php
    etc.        

1. Save the code you want to append on /MyProject/. Call it append.txt

2. From /MyProject/ run:

   find . -name "*.php" -print | xargs sed -i '$r append.txt'
   

   Explain:

   • find does as it is, it looks for all .php, including subdirectories
   • xargs will pass (i.e. run) sed for all .php that have just been found
   • sed will do the appending. '$r append.txt' means go to the end of the file ($) and write (paste) whatever is in append.txt there. Don't forget -i otherwise it will just print out the appended file and not save it.

Source: http://www.grymoire.com/unix/Sed.html#uh-37