Hi,


$ sudo fdisk -l
Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Disk model: HITACHI HTS72505
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 6EC2F34F-F0E0-44EB-AF31-94969532B3A5

Device Start End Sectors Size Type
/dev/sda1 2048 1023999 1021952 499M Windows recovery environment /dev/sda2 1024000 1226751 202752 99M EFI System
/dev/sda3 1226752 1259519 32768 16M Microsoft reserved
/dev/sda4 1259520 103657471 102397952 48.8G Microsoft basic data
/dev/sda5 103657472 206057471 102400000 48.8G Linux filesystem
/dev/sda6 223012864 877277183 654264320 312G Microsoft basic data
/dev/sda7 206057472 223012863 16955392 8.1G Linux swap
/dev/sda8 877277184 976773119 99495936 47.5G Linux filesystem

Partition table entries are not in disk order.




$ sudo fdisk -l |tail -n 10|head -n 8
/dev/sda1 2048 1023999 1021952 499M Windows recovery environment /dev/sda2 1024000 1226751 202752 99M EFI System
/dev/sda3 1226752 1259519 32768 16M Microsoft reserved
/dev/sda4 1259520 103657471 102397952 48.8G Microsoft basic data
/dev/sda5 103657472 206057471 102400000 48.8G Linux filesystem
/dev/sda6 223012864 877277183 654264320 312G Microsoft basic data
/dev/sda7 206057472 223012863 16955392 8.1G Linux swap
/dev/sda8 877277184 976773119 99495936 47.5G Linux filesystem


So far, so good.


Now, I only want fields 1 (Device), 5 (size) and 6 (Type):


$ sudo fdisk -l |tail -n 10|head -n 8|cut -f 1,5,6 -d" "
/dev/sda1
/dev/sda2 1024000
/dev/sda3 1226752
/dev/sda4 1259520 103657471
/dev/sda5 102400000 48.8G
/dev/sda6 654264320
/dev/sda7 16955392
/dev/sda8 99495936


What am I doing wrong?



--
Ottavio Caruso

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

In article <t11tbd$qh3$1@dont-email.me>,
Ottavio Caruso <ottavio2006-usenet2012@yahoo.com> wrote:
...

$ sudo fdisk -l |tail -n 10|head -n 8|cut -f 1,5,6 -d" "
/dev/sda1
/dev/sda2 1024000
/dev/sda3 1226752
/dev/sda4 1259520 103657471
/dev/sda5 102400000 48.8G
/dev/sda6 654264320
/dev/sda7 16955392
/dev/sda8 99495936

I couldn't make heads nor tails out of your proposal, but here's how I'd do
it:

# fdisk -l | gawk '/^\/dev\// { print $1,$5,$6 }'

What am I doing wrong?

Everything.

P.S. Nitpickers note: Some genius will want to write in to tell me that I
don't need gawk - that any old AWK will do. This is true, but irrelevant,
for a half-dozen or so reasons. So, don't bother.

--
Men rarely (if ever) manage to dream up a God superior to themselves.
Most Gods have the manners and morals of a spoiled child.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 18.03.2022 13:18, Ottavio Caruso wrote:

Hi,

$ sudo fdisk -l
Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Disk model: HITACHI HTS72505
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 6EC2F34F-F0E0-44EB-AF31-94969532B3A5

Device Start End Sectors Size Type
/dev/sda1 2048 1023999 1021952 499M Windows recovery environment /dev/sda2 1024000 1226751 202752 99M EFI System
/dev/sda3 1226752 1259519 32768 16M Microsoft reserved
/dev/sda4 1259520 103657471 102397952 48.8G Microsoft basic data
/dev/sda5 103657472 206057471 102400000 48.8G Linux filesystem
/dev/sda6 223012864 877277183 654264320 312G Microsoft basic data
/dev/sda7 206057472 223012863 16955392 8.1G Linux swap
/dev/sda8 877277184 976773119 99495936 47.5G Linux filesystem

Partition table entries are not in disk order.

$ sudo fdisk -l |tail -n 10|head -n 8
/dev/sda1 2048 1023999 1021952 499M Windows recovery environment /dev/sda2 1024000 1226751 202752 99M EFI System
/dev/sda3 1226752 1259519 32768 16M Microsoft reserved
/dev/sda4 1259520 103657471 102397952 48.8G Microsoft basic data
/dev/sda5 103657472 206057471 102400000 48.8G Linux filesystem
/dev/sda6 223012864 877277183 654264320 312G Microsoft basic data
/dev/sda7 206057472 223012863 16955392 8.1G Linux swap
/dev/sda8 877277184 976773119 99495936 47.5G Linux filesystem

So far, so good.

Now, I only want fields 1 (Device), 5 (size) and 6 (Type):

$ sudo fdisk -l |tail -n 10|head -n 8|cut -f 1,5,6 -d" "
/dev/sda1
/dev/sda2 1024000
/dev/sda3 1226752
/dev/sda4 1259520 103657471
/dev/sda5 102400000 48.8G
/dev/sda6 654264320
/dev/sda7 16955392
/dev/sda8 99495936

What am I doing wrong?

You are using the wrong tool; ignore cut, use awk.

awk '{print $1,$5,$6}'


Janis

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

In our last episode, the evil Dr. Lacto had captured our hero,
Ottavio Caruso <ottavio2006-usenet2012@yahoo.com>, who said:

$ sudo fdisk -l |tail -n 10|head -n 8
/dev/sda1 2048 1023999 1021952 499M Windows recovery environment

Notice that there are multiple spaces between /dev/sda1 and 2048

$ sudo fdisk -l |tail -n 10|head -n 8|cut -f 1,5,6 -d" "
/dev/sda1

cut sees each of those spaces in the above line as a delimiter for an
empty field

What am I doing wrong?

You need something like

$ sudo fdisk -l |tail -n 10|head -n 8| \
perl -ane 'print join(" ",@F[0,4,5]),"\n";'

I'm sure awk will do it, but I don't know awk as well as I know perl.
And I'm not sure my perl is correct either.

--hymie! http://nasalinux.net/~hymie hymie@nasalinux.net

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 3/18/2022 8:18 AM, Ottavio Caruso wrote:

Hi,

$ sudo fdisk -l
Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Disk model: HITACHI HTS72505
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 6EC2F34F-F0E0-44EB-AF31-94969532B3A5

Device         Start       End   Sectors  Size Type /dev/sda1       2048   1023999   1021952  499M Windows recovery environment
/dev/sda2    1024000   1226751    202752   99M EFI System /dev/sda3    1226752   1259519     32768   16M Microsoft reserved /dev/sda4    1259520 103657471 102397952 48.8G Microsoft basic data /dev/sda5  103657472 206057471 102400000 48.8G Linux filesystem
/dev/sda6  223012864 877277183 654264320  312G Microsoft basic data /dev/sda7  206057472 223012863  16955392  8.1G Linux swap
/dev/sda8  877277184 976773119  99495936 47.5G Linux filesystem

Partition table entries are not in disk order.

$ sudo fdisk -l |tail -n 10|head -n 8
/dev/sda1       2048   1023999   1021952  499M Windows recovery environment
/dev/sda2    1024000   1226751    202752   99M EFI System /dev/sda3    1226752   1259519     32768   16M Microsoft reserved /dev/sda4    1259520 103657471 102397952 48.8G Microsoft basic data /dev/sda5  103657472 206057471 102400000 48.8G Linux filesystem
/dev/sda6  223012864 877277183 654264320  312G Microsoft basic data /dev/sda7  206057472 223012863  16955392  8.1G Linux swap
/dev/sda8  877277184 976773119  99495936 47.5G Linux filesystem

So far, so good.

Now, I only want fields 1 (Device), 5 (size) and 6 (Type):

$ sudo fdisk -l |tail -n 10|head -n 8|cut -f 1,5,6 -d" "
/dev/sda1
/dev/sda2 1024000
/dev/sda3 1226752
/dev/sda4 1259520 103657471
/dev/sda5 102400000 48.8G
/dev/sda6 654264320
/dev/sda7  16955392
/dev/sda8  99495936

What am I doing wrong?

The awk solution is probably best, but here's another solution:

$ sudo fdisk -l |tail -n 10|head -n 8 |tr -s ' ' |cut -f 1,5,6 -d" "

The tr command there squeezes runs of spaces into a single space.

--
Wayne

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)