Have deleted library file to trash. Computer now wont booy up

I have deleted the files in 2 of the library folders to trash. Now the computer will not boot up. I have tried repair in disk utility with no luck and have no backups. Is there a way to recover these files to their correct location?

No wonder it won't boot - those files control the system background jobs that are required to run essential system services! What were you thinking?!
A backup onto the same disk is not really a backup, you could easily break the disk when it it resizing the partitions - do not do this!
A reinstall is intended to resolve issues like this - when you upgrade the OS the same thing is used (all the apps are left alone, the user data is also left on the disk).
The other option you have is to try to use Terminal in recovery mode to copy back the files from the Trash folder. This is complex & can also mess up the OS if you make typo or don;t know what you are doing. I have tried to work out instructions for Terminal, but it seems too difficult to manage remotely sorry, I really think you have to risk a reinstall.
If you still want to take a backup first ask, but find an external disk first.

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