Re: Dunce awk question

[Dan LaBell]

On Sep 25, 2015, at 6:41 AM, William A. Mahaffey III wrote:




I am trying to use awk & grep to fashion a command to print out HDD  
temps, along w/ some identifying info:



I've been doing something similar, except with sed
#!/bin/mksh -p
mbmon -c 1 | sed -n '2{
h
s/, .*$//
p
}
'

atactl wd0d smart status | sed -n '/^194/{
h
s/^194.*Temperature[ ]*/wd0d =/
p
}
#tempget
Temp.= 31.0
wd0d =  28
The first grabs only line 2, and deletes everything after the first  
comma.

The second grabs the line the begins with 194...

If I wanted do that with awk.
#atactl wd0d smart status| awk '/^194/{print ($8) } '
33
or
#atactl wd0d smart status| awk '/^194/{print ($7, "wd0d", $8) } '
Temperature wd0d 34
I can grab the model like this.
#atactl wd0d identify | awk '/^Model:/{print ($2) }'
ST380021A,
Which leaves me with a pesky comma, or with sed.
#atactl wd0d identify | sed -n '1{
h
s/^Model://
s/, .*$//
p
}'
 ST380021A



I am only *weakly* familiar w/ GNU awk, where the above works.



awk's printf would expect to begin with format like C's printf.  The  
standard
idiom is to use '{print $8}', but then if you want to do more, you  
have to remember

both the parens, and the commas, so now I always do '{print ($8)}' .

Re: Dunce awk question

[William A. Mahaffey III]

On 09/26/15 13:41, Dan LaBell wrote:


On Sep 25, 2015, at 6:41 AM, William A. Mahaffey III wrote:




I am trying to use awk & grep to fashion a command to print out HDD 
temps, along w/ some identifying info:



I've been doing something similar, except with sed
#!/bin/mksh -p
mbmon -c 1 | sed -n '2{
h
s/, .*$//
p
}
'

atactl wd0d smart status | sed -n '/^194/{
h
s/^194.*Temperature[ ]*/wd0d =/
p
}
#tempget
Temp.= 31.0
wd0d =  28
The first grabs only line 2, and deletes everything after the first 
comma.

The second grabs the line the begins with 194...

If I wanted do that with awk.
#atactl wd0d smart status| awk '/^194/{print ($8) } '
33
or
#atactl wd0d smart status| awk '/^194/{print ($7, "wd0d", $8) } '
Temperature wd0d 34
I can grab the model like this.
#atactl wd0d identify | awk '/^Model:/{print ($2) }'
ST380021A,
Which leaves me with a pesky comma, or with sed.
#atactl wd0d identify | sed -n '1{
h
s/^Model://
s/, .*$//
p
}'
 ST380021A



I am only *weakly* familiar w/ GNU awk, where the above works.



awk's printf would expect to begin with format like C's printf. The 
standard
idiom is to use '{print $8}', but then if you want to do more, you 
have to remember

both the parens, and the commas, so now I always do '{print ($8)}' .



I wound up fancying everything up into a shell script:


[wam@4256EE1, ~, 7:31:08am] 523 % cat `which hddtemp`
#! /bin/csh -f

# Using your version string above, the following works for me:
#
# % echo 'Model: HGST HTS721010A9E630, Rev: JB0OA3J0, Serial #:
# JR10046P1D5UXN' | awk '/Model/ { print $3 }'
# HTS721010A9E630,
#
# Some rules I usually go by:
# 1. Piping through grep and awk is almost always wrong - awk has some
# fine regexps, you should just use them
# 2. Different disks and virtual disks report using different formats.
# For instance, for me on a VM:
#
# % sudo atactl wd0 identify
# Model: VMware Virtual IDE Hard Drive, Rev: 0001, Serial #:
# 0001
#
# and the third field in that string is "Virtual"
#
# 3. Most uses of "just print this" in awk for me use the "print" verb.
# "printf" needs a format string, same as in C.


# echo 'Model: HGST HTS721010A9E630, Rev: JB0OA3J0, Serial #: 
JR10046P1D5UXN' | awk '/Model/{print $3}'


echo "SMART supported, SMART enabled"

foreach drive ($*)
echo -n 'drive '$drive': '; sudo atactl $drive identify | awk 
'/Model/ {ORS = ", "; print $2, $3, "S/N:", $8}' -
sudo atactl $drive smart status | awk '/Temp/ {print "Temp.", $8, 
"degC,", $9, $10, $11, "degC"}' -
#   echo -n 'drive '$drive': '; sudo atactl $drive identify | grep Model 
| awk '{ORS = ", "; print $2, $3, "S/N:", $8}' -
#   sudo atactl $drive smart status | grep Temp | awk '{print "Temp.", 
$8, "degC", $9, $10, $11, "degC"}' -

end
[wam@4256EE1, ~, 7:41:46pm] 524 % envstat ; hddtemp wd0 wd1 wd2 wd3 wd4 wd5
  Current  CritMax  WarnMax  WarnMin  CritMin Unit
[amdtemp0]
  cpu0 temperature:33.000 degC
SMART supported, SMART enabled
drive wd0: HGST HTS721010A9E630, S/N: JR10046P1D5UXN, Temp. 31 degC, 
Lifetime min/max 21/40 degC
drive wd1: HGST HTS721010A9E630, S/N: JR10046P1D605N, Temp. 32 degC, 
Lifetime min/max 21/42 degC
drive wd2: HGST HTS721010A9E630, S/N: JR10046P1D5TZN, Temp. 31 degC, 
Lifetime min/max 21/40 degC
drive wd3: HGST HTS721010A9E630, S/N: JR10046P1EK9GN, Temp. 32 degC, 
Lifetime min/max 21/41 degC
drive wd4: HGST HTS721010A9E630, S/N: JR10046P1EJ4UN, Temp. 30 degC, 
Lifetime min/max 20/38 degC
drive wd5: HGST HTS721010A9E630, S/N: JR10046P1D5V2N, Temp. 31 degC, 
Lifetime min/max 21/39 degC

[wam@4256EE1, ~, 7:43:24pm] 525 %


*Wohooo*  Thanks for all the pointers :-).


--

William A. Mahaffey III

 --

"The M1 Garand is without doubt the finest implement of war
 ever devised by man."
   -- Gen. George S. Patton Jr.

Re: Dunce awk question

[William A. Mahaffey III]

H  All good observations, especially the multiple pipes, I'll 
look into that. Thanks :-) 




On 09/25/15 11:13, Alistair Crooks wrote:

Using your version string above, the following works for me:

% echo 'Model: HGST HTS721010A9E630, Rev: JB0OA3J0, Serial #:
JR10046P1D5UXN' | awk '/Model/ { print $3 }'
HTS721010A9E630,

Some rules I usually go by:
1. Piping through grep and awk is almost always wrong - awk has some
fine regexps, you should just use them
2. Different disks and virtual disks report using different formats.
For instance, for me on a VM:

% sudo atactl wd0 identify
Model: VMware Virtual IDE Hard Drive, Rev: 0001, Serial #:
0001

and the third field in that string is "Virtual"

3. Most uses of "just print this" in awk for me use the "print" verb.
"printf" needs a format string, same as in C.

Regards,
Al

On 25 September 2015 at 08:34, William A. Mahaffey III  wrote:


I am trying to use awk & grep to fashion a command to print out HDD temps,
along w/ some identifying info:

[wam@4256EE1, ~, 10:41:29am] 418 % sudo atactl wd0 identify | grep Model
Model: HGST HTS721010A9E630, Rev: JB0OA3J0, Serial #: JR10046P1D5UXN
[wam@4256EE1, ~, 10:41:31am] 419 % sudo atactl wd0 identify | grep Model |
awk '{printf $3 " "}' -
[wam@4256EE1, ~, 10:41:32am] 420 % uname -a
NetBSD 4256EE1.CFD.COM 6.1.5 NetBSD 6.1.5 (GENERIC) amd64
[wam@4256EE1, ~, 10:41:34am] 421 %

I am only *weakly* familiar w/ GNU awk, where the above works. What am I
missing here, I expected the above to print out the model # of the HDD.
Please apply the clue-bat generously :-) 


--

 William A. Mahaffey III

  --

 "The M1 Garand is without doubt the finest implement of war
  ever devised by man."
-- Gen. George S. Patton Jr.




--

William A. Mahaffey III

 --

"The M1 Garand is without doubt the finest implement of war
 ever devised by man."
   -- Gen. George S. Patton Jr.

Re: Dunce awk question

[Alistair Crooks]

Using your version string above, the following works for me:

% echo 'Model: HGST HTS721010A9E630, Rev: JB0OA3J0, Serial #:
JR10046P1D5UXN' | awk '/Model/ { print $3 }'
HTS721010A9E630,

Some rules I usually go by:
1. Piping through grep and awk is almost always wrong - awk has some
fine regexps, you should just use them
2. Different disks and virtual disks report using different formats.
For instance, for me on a VM:

% sudo atactl wd0 identify
Model: VMware Virtual IDE Hard Drive, Rev: 0001, Serial #:
0001

and the third field in that string is "Virtual"

3. Most uses of "just print this" in awk for me use the "print" verb.
"printf" needs a format string, same as in C.

Regards,
Al

On 25 September 2015 at 08:34, William A. Mahaffey III  wrote:
>
>
> I am trying to use awk & grep to fashion a command to print out HDD temps,
> along w/ some identifying info:
>
> [wam@4256EE1, ~, 10:41:29am] 418 % sudo atactl wd0 identify | grep Model
> Model: HGST HTS721010A9E630, Rev: JB0OA3J0, Serial #: JR10046P1D5UXN
> [wam@4256EE1, ~, 10:41:31am] 419 % sudo atactl wd0 identify | grep Model |
> awk '{printf $3 " "}' -
> [wam@4256EE1, ~, 10:41:32am] 420 % uname -a
> NetBSD 4256EE1.CFD.COM 6.1.5 NetBSD 6.1.5 (GENERIC) amd64
> [wam@4256EE1, ~, 10:41:34am] 421 %
>
> I am only *weakly* familiar w/ GNU awk, where the above works. What am I
> missing here, I expected the above to print out the model # of the HDD.
> Please apply the clue-bat generously :-) 
>
>
> --
>
> William A. Mahaffey III
>
>  --
>
> "The M1 Garand is without doubt the finest implement of war
>  ever devised by man."
>-- Gen. George S. Patton Jr.
>

Re: Dunce awk question

[Andy Ruhl]

On Fri, Sep 25, 2015 at 8:34 AM, William A. Mahaffey III  
wrote:
>
>
> I am trying to use awk & grep to fashion a command to print out HDD temps,
> along w/ some identifying info:
>
> [wam@4256EE1, ~, 10:41:29am] 418 % sudo atactl wd0 identify | grep Model
> Model: HGST HTS721010A9E630, Rev: JB0OA3J0, Serial #: JR10046P1D5UXN
> [wam@4256EE1, ~, 10:41:31am] 419 % sudo atactl wd0 identify | grep Model |
> awk '{printf $3 " "}' -
> [wam@4256EE1, ~, 10:41:32am] 420 % uname -a
> NetBSD 4256EE1.CFD.COM 6.1.5 NetBSD 6.1.5 (GENERIC) amd64
> [wam@4256EE1, ~, 10:41:34am] 421 %
>
> I am only *weakly* familiar w/ GNU awk, where the above works. What am I
> missing here, I expected the above to print out the model # of the HDD.
> Please apply the clue-bat generously :-) 

print not printf

Andy

Re: Dunce awk question

[David]

On 2015-09-25 11:41, William A. Mahaffey III wrote:


I am trying to use awk & grep to fashion a command to print out HDD
temps, along w/ some identifying info:

[wam@4256EE1, ~, 10:41:29am] 418 % sudo atactl wd0 identify | grep 
Model

Model: HGST HTS721010A9E630, Rev: JB0OA3J0, Serial #: JR10046P1D5UXN
[wam@4256EE1, ~, 10:41:31am] 419 % sudo atactl wd0 identify | grep
Model | awk '{printf $3 " "}' -
[wam@4256EE1, ~, 10:41:32am] 420 % uname -a
NetBSD 4256EE1.CFD.COM 6.1.5 NetBSD 6.1.5 (GENERIC) amd64
[wam@4256EE1, ~, 10:41:34am] 421 %

I am only *weakly* familiar w/ GNU awk, where the above works. What am
I missing here, I expected the above to print out the model # of the
HDD. Please apply the clue-bat generously :-) 


You almost certainly don't need grep when awk is involved:

echo 'Model: HGST HTS721010A9E630, Rev: JB0OA3J0, Serial #: 
JR10046P1D5UXN' | awk '/Model/{print $3}'


seems to work for me...

--
da...@chromiq.org

Re: Dunce awk question

[William A. Mahaffey III]

On 09/25/15 11:18, David wrote:

On 2015-09-25 11:41, William A. Mahaffey III wrote:


I am trying to use awk & grep to fashion a command to print out HDD
temps, along w/ some identifying info:

[wam@4256EE1, ~, 10:41:29am] 418 % sudo atactl wd0 identify | grep Model
Model: HGST HTS721010A9E630, Rev: JB0OA3J0, Serial #: JR10046P1D5UXN
[wam@4256EE1, ~, 10:41:31am] 419 % sudo atactl wd0 identify | grep
Model | awk '{printf $3 " "}' -
[wam@4256EE1, ~, 10:41:32am] 420 % uname -a
NetBSD 4256EE1.CFD.COM 6.1.5 NetBSD 6.1.5 (GENERIC) amd64
[wam@4256EE1, ~, 10:41:34am] 421 %

I am only *weakly* familiar w/ GNU awk, where the above works. What am
I missing here, I expected the above to print out the model # of the
HDD. Please apply the clue-bat generously :-) 


You almost certainly don't need grep when awk is involved:

echo 'Model: HGST HTS721010A9E630, Rev: JB0OA3J0, Serial #: 
JR10046P1D5UXN' | awk '/Model/{print $3}'


seems to work for me...



Yes, thanks :-) 

--

William A. Mahaffey III

 --

"The M1 Garand is without doubt the finest implement of war
 ever devised by man."
   -- Gen. George S. Patton Jr.