Text replace recursively in files

$ grep 'text for replace' -P -R -I -l  * | xargs sed -i 's/regexp1/regexp2/g'

$find path -print0 | xargs -0 sed -i 's/regexp1/regexp2/g'

         $ find . -type f -print0 | xargs -0 perl -i -pe 's/regexp/some/g'


         $find -type f -name \*.py -exec sed -i -r 's/regexp1/regexp2/g' {} \;



Restarting php-fpm

• Using SysV Init scripts directly:
  

  /etc/init.d/php-fpm restart    # typical
  /etc/init.d/php5-fpm restart   # debian-style
  

• Using service wrapper script
  

  service php-fpm restart    # typical
  service php5-fpm restart   # debian-style
  

• Using Upstart (e.g. ubuntu):
  

  restart php5-fpm           # typical (ubuntu is debian-based)
  restart php-fpm            # uncommon
  

• Using systemd (newer servers):
  

  systemctl restart php-fpm.service    # typical
  systemctl restart php5-fpm.service   # uncommon