How to get a device details only using awk commands

Question

Friends, I have fdisk -l output in one file called test1.txt.

Now I want to get the device name only using awk.

How to get a device name?

I want output like this:

/dev/sda1
/dev/sda2
/dev/sda3
/dev/sdb1
/dev/sdc1

The usual questions: What have you tried yet? What were your results? — n.st, Mar 2 '14 at 7:13
I'd suggest dropping the awk bit from your question. As was stated on the other Q you asked with a similar title it isn't relevant. unix.stackexchange.com/questions/117739/… — slm♦, Mar 2 '14 at 7:49

jasonwryan · Answer 1 · 2014-03-02 16:24:07Z

up vote 2 down vote

awk '/^\/dev\// { print $1 }' test1.txt

Assuming this correlates to your fdisk output...

answered Mar 2 '14 at 7:12

jasonwryan
29.3k964118

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Chris Down · Answer 2 · 2014-03-02 07:34:20Z

up vote 3 down vote

I don't see any reason to do this using fdisk and awk -- just get the device names from /dev:

printf '%s\n' /dev/[sh]d*

If you only want the partitions and not whole disks, limit the glob to look for a number in the name:

printf '%s\n' /dev/[sh]d*[[:digit:]]*

You can also query /dev/disk, but this may contain some devices you don't care about (the device mapper, for example):

readlink -f /dev/disk/by-id/*

answered Mar 2 '14 at 7:14

Chris Down
46.1k6105141

readlink -f command not work – rajcoumar Mar 2 '14 at 8:01

"Not work" in what way? – Chris Down Mar 3 '14 at 4:00

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2 Answers 2