檔案比對

1. 先找出目錄 src 下有修改過的檔案。

   [root@mail squirrelmail-1.4.8]# diff --ignore-all-space -qr . /var/www/squirrelmail/ | egrep -v "(\.png|locale:|decode:|help:|\.bak|Only.*plugins|tar.gz|hlp)" | sort | grep Files | sed 's/Files\ \(.*\)\ and\ \(.*\) differ/\1 \2/' | grep src
   ./src/addressbook.php /var/www/squirrelmail/src/addressbook.php
   ./src/compose.php /var/www/squirrelmail/src/compose.php
   ./src/configtest.php /var/www/squirrelmail/src/configtest.php
   ./src/empty_trash.php /var/www/squirrelmail/src/empty_trash.php
   ./src/left_main.php /var/www/squirrelmail/src/left_main.php
   ./src/login.php /var/www/squirrelmail/src/login.php
   ./src/printer_friendly_bottom.php /var/www/squirrelmail/src/printer_friendly_bottom.php
   ./src/printer_friendly_main.php /var/www/squirrelmail/src/printer_friendly_main.php
   ./src/read_body.php /var/www/squirrelmail/src/read_body.php
   ./src/redirect.php /var/www/squirrelmail/src/redirect.php
   ./src/right_main.php /var/www/squirrelmail/src/right_main.php
   ./src/view_header.php /var/www/squirrelmail/src/view_header.php
   ./src/view_text.php /var/www/squirrelmail/src/view_text.php
   ./src/webmail.php /var/www/squirrelmail/src/webmail.php