On Sun, Jan 25, 2026 at 11:54:37 -0700, [email protected] wrote:
> The drive isn't formatted
What?
> and has a UUID such as
> 2026-01-19-03-28-45-00. Shorter than a UUID for a file system.
This looks like a timestamp.
> OK in a simple test. Suggestions always welcome. Something may be
> more efficient than the long pipeline.
> lsblk --nodeps -o name,serial | grep -F -- "$destination" | cut -d ' ' -f1
It would help if we knew what the output looks like. On my system:
hobbit:~$ sudo lsblk --nodeps -o name,serial
[sudo] password for greg:
NAME SERIAL
nvme0n1 UPJQD01ZTJ03L4
So... you *have* the serial number (somehow) and you *want* the "name"
field? The obvious way would be to use awk:
lsblk --nodeps -o name,serial |
awk -v serial="$serial" '$2 == serial {print $1}'
On my system:
hobbit:~$ serial=UPJQD01ZTJ03L4
hobbit:~$ sudo lsblk --nodeps -o name,serial | awk -v serial="$serial" '$2 ==
serial {print $1}'
nvme0n1
awk -v isn't 100% safe with all inputs, but if your serial number is
reasonable (alphanumeric, maybe with some basic punctuation, but no
backslashes or control characters) it should be OK.
