====== Misc. Scripts ======

==== Find out name of USB stick ====

   # fdisk -l
   
==== findmnt ====

Detailed listing of mounts, mount points, and child directories.

  > findmnt


==== List USB drives, mounted and unmounted ====

   lsblk
   

==== Create mount point ====

   # mkdir /mnt/usb-drive 
   
==== List connected USB devices ====

   $ lsusb
   $ lsusb -v
   
More detailed version:

   $ usb-devices
   
==== Look at label of drive ====

    # e2label /dev/sda1 
    
Change label    
    
    # e2label /dev/sda1 Boot
    


   
From the /etc/fstab file:

  # blkid

  Use 'blkid' to print the universally unique identifier for a device; 
  this may be used with UUID= as a more robust way to name devices that 
  works even if disks are added and removed. See fstab(5).

==== dmesg - print or control the kernel ring buffer ====

This shows possible error messages from the drive mounting

    $ dmesg.


==== Mount USB drive to system ====

    # mount /dev/sdc1 /mnt/usb-drive/
    
==== Partition GPT with gdisk ====

    # gdisk /dev/sdc
    

==== Partition and Format GPT with PARTED ====

This is somewhat difficult to use because the mkpart command sometimes gives alignment errors. 

    $ sudo parted /dev/sdd
    mklabel gpt
    
    (parted) print
    Model: ASMT 2105 (scsi)
    Disk /dev/sdd: 1000GB
    Sector size (logical/physical): 512B/512B
    Partition Table: gpt
    Disk Flags:
    
    Number  Start  End  Size  File system  Name  Flags
    
    mkpart primary 0% 100%
    (parted) quit
    

==== Create a Filesystem on the New Partition ====

    # mkfs.ext4 -L offsitebackup /dev/sdd1


==== Mount for Test Use ====

    # mount /dev/sdd1 /mnt/offsitebackup
    
 
==== Copy ISO to USB stick ====

Reference: http://askubuntu.com/questions/116942/any-way-to-manually-make-a-bootable-usb-from-iso

   sudo dd if=/path/to.iso of=/dev/sdb bs=16M

==== Mount to NTFS Drive with permissions for specific user and group ====

NTFS does not have Linux-compatible permissions, so when you mount with a normal NTFS connection, you have wide-open permissions. To make the NTFS drive look like it has a specific owner and group, use something like this:

   mount -o uid=userid,gid=groupid,dmask=022,fmask=133 /path/to/disk /mnt 
   
https://unix.stackexchange.com/questions/604674/chmod-is-not-working-on-ntfs-3g-partition
===== rdfind =====

This compares directories of files and decides which files can be removed due to an algorithm.

-n Is a dry run mode only
directory director - list of directories and files to compare. Items found first are the originals, and kept.

  sudo rdfind -n true /var/nas/backup /var/archive/backup
  
===== Remove empty directories =====

  find /path/to/dir -empty -type d -delete

===== Remove empty files =====

  find /path/to/dir -empty -type f -delete