Using a SH file command to replace text in a file.
Author: Anthony Rossbach
echo "JOB: Checking for file replacement for php limit"
string="php_admin_value memory_limit 32M"
stringnew="php_admin_value memory_limit 64M"
grep "$stringnew" /usr/local/vesta/data/templates/web/apache2/hosting.tpl || sed -i "s/$string/$stringnew/g" /usr/local/vesta/data/templates/web/apache2/hosting.tpl
echo "JOB: Complete"
This is the one used for NodeHost (only part). It fetches the file, and finds the old line and replaces it.