I removed the run directory of /var/run on Debian and need to fix it

Can anyone tell me how I can undo a sudo rm -r /var/run mistake?

I am unable to use sftp and mysql now.

mkdir /var/run
chmod 755 /var/run

that will fix most things, anything that still doesn’t work will just need to be restarted

edit: restarted as in, /etc/init.d/ssh restart which will recreate /var/run/sshd. you may have some issues with the pid files being missing, nothing a manual pkill won’t fix.

Check more discussion of this question.