CODEWITHSUNDEEP
phpregexunixsed
user3353408
user3353408

Reputation:

Php and unix grep backslashing does not work

I have a fairly simple problem I just cannot seem to find a solution. I want to delete a line containing a certain string in all the files in a directory on my website. This string contains double quotes though. I have been trying to find a solution using backslashing but its does not work.

The string I want to replace is:session_register("c$key");

I'm using this php and unix code:

$command = "sed -i '/session_register(\"c$key\")/d;' ./*";
$output = shell_exec($command);

I want to delete this line because session_register is outdated. It does not do anything but does not give me an error. What is the problem or how should I backslash?

Thanks a lot!

Upvotes: 1

Views: 43

Answers (1)

anubhava
anubhava

Reputation: 785856

You need to double escape $ as well since $ is special regex symbol means end of input. Also use single quote instead of double for your $command string assignment.

Try this:

$command = 'sed -i.bak \'/session_register("c\\$key")/d;\' ./*';
$output = shell_exec($command);

Upvotes: 1

Related Questions