====== Linux Scripts ======

====Keypair====
  ssh-keygen -t rsa
Enter to save file with default empty password
  ssh-copy-id user@123.45.56.78

https://www.digitalocean.com/community/tutorials/how-to-set-up-ssh-keys--2
===== Disabling power button under FreeBSD =====
	
  /sbin/sysctl hw.acpi.power_button_state=NONE

===== Backup with rsync =====

  rsync -rcpogt /mnt/usb/Backups/DiscImages /mnt/Disk/Backups --exclude '.zfs'


=====Search for text in file=====
  grep --after-context=5 --before-context=10 'Nov 12 2012' yourfile.log




=====Backup across machines=====
  rsync -avpotW /mnt/Disk/Users --delete --exclude '.zfs' root@192.168.2.18:/mnt/usb/ --log-file="/mnt/Disk/Backups/freenas__rsync_users.txt"

  rsync -avpotW /mnt/Disk/Films --delete --exclude '.zfs' root@192.168.2.18:/mnt/temp/ --log-file="/mnt/Disk/Backups/freenas__rsync_films.txt"

  rsync -avpotW /mnt/Disk/Music --delete --exclude '.zfs' root@192.168.2.18:/mnt/usb/ --log-file="/mnt/Disk/Backups/freenas__rsync_music.txt"

  rsync -avpotW /mnt/Disk/Backups/DiscImages --delete --exclude '.zfs' root@192.168.2.18:/mnt/usb/ --log-file="/mnt/Disk/Backups/freenas__rsync_discimages.txt"

  rsync -avpotW /mnt/Disk/Video/Home\ Videos --delete --exclude '.zfs' root@192.168.2.18:/mnt/usb/ --log-file="/mnt/Disk/Backups/freenas__rsync_homevideos.txt"

  rsync -avpotW /mnt/Disk/Data/p --delete --exclude '.zfs' root@192.168.2.18:/mnt/usb/Data/ --log-file="/mnt/Disk/Backups/freenas__rsync_p.txt"

  rsync -avpotW /mnt/Disk/Data/Exes --delete --exclude '.zfs' root@192.168.2.18:/mnt/usb/Data/ --log-file="/mnt/Disk/Backups/freenas__rsync_exes.txt"

  rsync -avpotW /mnt/Disk/Data/scripts --delete --exclude '.zfs' root@192.168.2.18:/mnt/usb/Data/ --log-file="/mnt/Disk/Backups/freenas__rsync_scripts.txt"


=====Copy with scp=====
Copy files from a local computer to a remote computer

  scp somefile username@server:/home/username/

Copy files from a remote server to your local computer

  scp username@server:/home/username/file_name /home/local-username/file-name

===== CentOS minimal install =====
  chkconfig --list |grep "3:on"

===== VBoxManage Commands =====
  VBoxManage snapshot endian take first_boot --pause

===== search and remove files from directories =====
  find . -type f -name "AlbumAr*" -exec rm -f {} \;
===== Find and replace text in files in a folder=====
  sudo find RTPOP* -type f -exec sed -i 's/239.216.142/239.216.146/g' {} +