sudo smartctl -a /dev/sdb
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.10.102.1-microsoft-standard-WSL2] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Vendor: Msft
Product: Virtual Disk
Revision: 1.0
Compliance: SPC-3
User Capacity: 274,877,906,944 bytes [274 GB]
Logical block size: 512 bytes
Physical block size: 4096 bytes
LU is thin provisioned, LBPRZ=0
>> Terminate command early due to bad response to IEC mode page
A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.
for ((i=1; i<=n; i++));
do
sudo smartctl -a /dev/sdb | awk 'NR>4' | sed -e '/^>>/,$d'| jq -Rs 'split("\n") | map(split(":") | map(gsub(" "; "")) | select(length > 1) | {(.[0]): .[1]}) | add';
done
sudo smartctl -a /dev/sdb | awk 'NR>4' | sed -e '/^>>/,$d':
sudo smartctl -a /dev/sdb
: This command uses smartctl to retrieve information about the specified device/dev/sdb
.awk 'NR>4'
: Filters the output from smartctl, displaying only lines starting from line number 5 and onwards (NR>4 means "number of records greater than 4").sed -e '/^>>/,$d'
: Uses sed to remove all lines from the line that starts with >> until the end of the output. It discards any error-related messages captured by smartctl.
jq -Rs 'split("\n") | map(split(":") | map(gsub(" "; "")) | select(length > 1) | {(.[0]): .[1]}) | add':
-
jq -Rs
: Invokes jq in raw input mode (-R) to read input as a single string (-s), rather than a stream of JSON objects. -
'split("\n") | map(split(":") | map(gsub(" "; "")) | select(length > 1) | {(.[0]): .[1]}) | add'
: This is a series of jq filters to manipulate and process the string input. Breaking it down:split("\n")
: Splits the input string into an array based on newline characters.map(split(":") | map(gsub(" "; "")) | select(length > 1) | {(.[0]): .[1]})
: For each line (now an array element):split(":")
: Splits each line into an array using the colon : as a separator.- map(gsub(" "; "")): Removes any spaces from the resulting array elements.
select(length > 1)
: Filters out array elements with a length less than or equal to 1.{(.[0]): .[1]}
: Constructs objects with key-value pairs, taking the first and second elements of the array as key and value, respectively.add
: Merges all the resulting objects into a single JSON object.
This whole command sequence takes the output from smartctl, processes it to extract key-value pairs separated by :, removes spaces, filters the valid pairs, and constructs a JSON object with these pairs.
All answers provide by ChatGPT 3.5, I tested on 3 AI ChatGPT/Copilot/Bard (all is free edtion)