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Auto-detect drive identifier?

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# 1  
Old 11-10-2009
Auto-detect drive identifier?

Is there a way I could autodetect a drive identifier? For example, below I would like to be able to put "disk1s1" into a variable (meaning that every time that the script I am writing runs I would like to be able to figure out the disk number for my BACKUP 1 Partition). I am not an expert, sorry if this is a stupid question, any help appreciated because I am interested in getting better at this.

Michael-Fredericks-Mac-Pro:~ Mike$ diskutil list
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk0
   1:                        EFI                         209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            700.1 GB   disk0s2
   3:       Microsoft Basic Data                         299.7 GB   disk0s3
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *1.5 TB     disk1
   1:                  Apple_HFS Backup 1                998.6 GB   disk1s1
   2:                  Apple_HFS Backup 2                501.7 GB   disk1s2

---------- Post updated at 08:50 AM ---------- Previous update was at 08:27 AM ----------

I used the following code to get the info I want, now I need to store that in a variable. Again, clearly I am not familiar with the convention that should be used.

diskutil list | grep Backup\ 1 | awk '{print $7}'

---------- Post updated at 08:53 AM ---------- Previous update was at 08:50 AM ----------

nvm, got it, really easy
# 2  
Old 11-10-2009
diskutil list |awk '/Backup 1/ {print $7}'

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