Commands using hdparm sorted by votes

Commands using hdparm (11)

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Testing hard disk reading speed
This is sample output - yours may be different.
13

hdparm -t /dev/sda

bassel · 2009-09-14 21:04:08 4
hard disk information - Model/serial no.

Get the hard disk information with out shutting down and opening the system. It gives information on model no., serial no., cylinders/heads/sectors, and the supported features of the hard disk. Show Sample Output
This is sample output - yours may be different.
```
hdparm -i /dev/sda | grep -i model
	Model Number:       ST3160815AS
```
10

hdparm -i[I] /dev/sda

rockon · 2009-03-01 10:00:28 5
Benchmark a hard drive
This is sample output - yours may be different.
2

sudo hdparm -Tt /dev/sda

kmac · 2009-02-19 16:28:32 3
Show the 1000*1000 and 1024*1024 size of HDs on system
This is sample output - yours may be different.
1

awk '/d[a-z]+$/{print $4}' /proc/partitions | xargs -i sudo hdparm -I /dev/{} | grep 'device size with M'

rthemocap · 2010-03-02 20:06:03 4
Factory reset your harddrive. (BE CAREFUL!)
This is sample output - yours may be different.
1

hdparm --yes-i-know-what-i-am-doing --dco-restore /dev/sdX

wuseman1 · 2019-07-04 14:20:27 35
Show the 1000*1000 and 1024*1024 size of HDs on system

I know this sucks in some way but if someone can improve it please be my guest Show Sample Output
This is sample output - yours may be different.
```
        device size with M = 1024*1024:       38166 MBytes
        device size with M = 1000*1000:       40020 MBytes (40 GB)
        device size with M = 1024*1024:       58627 MBytes
        device size with M = 1000*1000:       61475 MBytes (61 GB)
        device size with M = 1024*1024:      238475 MBytes
        device size with M = 1000*1000:      250059 MBytes (250 GB)
```
0

for I in $(awk '/d[a-z]+$/{print $4}' /proc/partitions); do sudo hdparm -I '/dev/'$I; done | grep 'device size with M'

ElAlecs · 2010-03-02 18:56:32 3

Useful to get info about the hard disk detail. Show Sample Output

hdparm --verbose /dev/sda1

yrkharche1 · 2012-05-04 05:58:58 2

Force spin-down of external hard-drive

requires superuser privileges
This is sample output - yours may be different.
0

hdparm -y /dev/sda

masmarius · 2014-07-11 22:30:55 4
Set the standby time of a hard drive

requires su privileges Show Sample Output
This is sample output - yours may be different.
```
automatically suspends the hard drive after 25 secs.
```
0

hdparm -S5 /dev/sda

masmarius · 2014-07-11 22:44:03 4
Set APM_level for HDD to prevent frequent parking
This is sample output - yours may be different.
0

sudo hdparm -B 200 /dev/sda

13_rom · 2014-10-16 13:01:13 5
Prevent aggressive Hdd spindown in Laptop battery powered

With many distro if a laptop will be running on batteries, the settings of the power management utility try to optimize the performance and behavior to increase battery life. Very often happens that the default settings are too aggressive and cause continuous Hdd spindown with the risk of damage. This command turns hdd power management off.
This is sample output - yours may be different.
0

sudo hdparm -B255 -S0 /dev/sda

Blacksimon · 2015-03-13 21:29:10 7

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sync two folders except hidden files

How to copy CD/DVD into hard disk (.iso)

A dear friend of mine asked me how do I copy a DVD to your hard drive? If you want to make a copy of the ISO image that was burned to a CD or DVD, insert that medium into your CD/DVD drive and (assuming /dev/cdrom is associated with your computer?s CD drive) type the following command

Mount important virtual system directories under chroot'ed directory

The command is useful when, e.g., booting an existing system with a rescue or installation CD where you need to chroot into the hard-disk and be able to do stuff which accesses kernel info (e.g. when installing Ubuntu desktop with LVM2 you need to mount and chroot the hard disk from a shell window in order to install packages and run initramfs inside chroot). The command assumes that /mnt/xxx is where the chroot'ed environment's root file system on the hard disk is mounted.

Calculate days on which Friday the 13th occurs (inspired from the work of the user justsomeguy)

Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale.

Scan your LAN for unauthorized IPs

populate the auth.hosts file with a list of IP addresses that are authorized to be in use and when you run this command it will return the addresses that are pingable and not in the authorized list. Can be combined with the "Command line Twitter" command to tweet unauthorized access.

List status of your git repos and let us know if there is any new files to commit.

Source: http://www.bashoneliners.com/oneliners/oneliner/225/

convert .bin / .cue into .iso image

bchunk [-v] [-p] [-r] [-w] [-s]

Set all CPU cores' CPU frequency scaling governor to maximum performance

Detect illegal access to kernel space, potentially useful for Meltdown detection

Based on capsule8 agent examples, not rigorously tested

Change the case of a single word in vim

In edit mode, toggle the case of a single word under the cursor in vim.

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Commands using hdparm (11)

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