Make changes in multiple files using sed and find - regex

Question

I've got to go through 100+ sites and add two lines to the same file in all of them (sendmail1.php).
The boss wants me to hand copy/paste this stuff, but there's GOT to be an easier way, so I'm trying to do it with find and sed, both of which apparently I'm not using well. I just want to run a script in the dir housing the directories that have all of the sites in them.
I have this:
#!/bin/bash
read -p "Which file, sir? : " file
# find . -depth 1 -type f -name 'sendmail1.php' -exec \
sed -i 's/require\ dirname\(__FILE__\).\'\/includes\/validate.php\';/ \
a require_once dirname\(__FILE__\).\'\/includes\/carriersoft_email.php\';' $file
sed -i 's/\else\ if\($_POST[\'email\']\ \&\&\ \($_POST\'work_email\'\]\ ==\ \"\"\)\){/ \
a\t$carriersoft_sent = carriersoft_email\(\);' $file
exit 0
At the moment, I have the find commented out while trying to sort out sed here and testing the script, but I'd like to solve both.
I think I'm not escaping something necessary in the sed bits, but I keep going over it and changing it and getting different errors (sometimes "unfinished s/ statement" other times. other stuff.
The point is I have to do this:
Right below require dirname(__FILE__).'/includes/validate.php';, add this line:
require_once dirname(__FILE__).'/includes/carriersoft_email.php';
AND
Under else if($_POST['email'] && ($_POST['work_email'] == "")){, add this line:
$carriersoft_sent = carriersoft_email();
I'd like to turn this 4 hours copy/pasta nightmare into a 2 minutes lazy admin type script it and get it done job.
But my fu is not strong with the sed or the find...
As for the find, I get "path must preceed expression: 1"
I've found questions here addressing that error, but indicating that using the '' to surround the filename should resolve it, but it's not working.

Answer 1

Keep it simple and just use awk since awk can operate with strings, unlike sed which only works on REs with additional caveats:
find whatever |
while IFS= read -r file
do
awk '
{ print }
index($0,"require dirname(__FILE__).\047/includes/validate.php\047;") {
print "require_once dirname(__FILE__).\047/includes/carriersoft_email.php\047;"
}
index($0,"else if($_POST[\047email\047] && ($_POST[\04work_email\047] == "")){") {
print "$carriersoft_sent = carriersoft_email();"
}
' "$file" > /usr/tmp/tmp_$$ &&
mv /usr/tmp/tmp_$$ "$file"
done
With GNU awk you can use -i inplace to avoid manually specifying the tmp file name if you like, just like with sed -i.
The \047s are one way to specify a single quote inside a single-quote-delimited script.

Answer 2

Try this:
sed -e "s/require dirname(__FILE__).'\/includes\/validate.php';/&\nrequire_once dirname(__FILE__).'\/includes\/carriersoft_email.php'\;/" \
-e "s/else if(\$_POST\['email'\] && (\$_POST\['work_email'\] == \"\")){/&\n\$carriersoft_sent = carriersoft_email();/" \
file
Note: I haven't used the -i flag. Once you are confirmed that it works for you, you can use the -i flag. Also I have combined your two sed command into one with -e option.

Answer 3

I think it would be clearer if instead of s you used another fine command, a. To output one changed file, create a script (eg. script.sed) with the following content:
/require dirname(__FILE__)\.'\/includes\/validate.php';/a\
require_once dirname(__FILE__).'/includes/carriersoft_email.php';
/else if(\$_POST\['email'\] && (\$_POST\['work_email'\] == "")){/a\
$carriersoft_sent = carriersoft_email();
and run sed -f script.sed sendmail1.php.
To apply changes in all files, run:
find . -name 'sendmail1.php' -exec sed -i -f script.sed {} \;
(-i causes sed to change file in-place).
It is always advisable in such operations to do a backup and check out the exact changes after running the command. :)