Find extra space / new line after a closing ?> (php tag)

Question

So I have a space/new line after a closing ?> (php tag) that is breaking my application.

How can I find it easily I have 1000 of files and 100000 lin

Answer 1

This is possible with regular grep

grep -Pz '\?>[\s]+$' -Rl

Will search for all files starting from the current directory and list all that have a ?> followed by white space at the end of the file.

• -P Interpret the pattern as a Perl-compatible regular expression (PCRE).
• -z Treats the input file as one long line - this is in part what makes it work
• [\s]+ matches at least one white space - including newlines

If you want to match PHP files only:

find -name '*.php' | xargs grep -Pz '\?>[\s]+$' -l

To search for white space at the beginning of the file before

find -name '*.php' | xargs grep -Pz '^[\s]+<\?' -l