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Newsgroups: comp.unix.shell
From:
Beery <mentorbe... @gmail.com> Date: Fri, 14 Sep 2012 20:59:32 -0700 (PDT)
Local: Fri, Sep 14 2012 11:59 pm
Subject: Awk Split Question
I have a file containing rows like
MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
I want to split the elements into an array with the "\n" being the separator. For some reason the following
awk '{if($1~/MemTotal/){split($0,a,"kB");print a[1]}}'
prints the whole row and fails to detect the separator. Any suggestion on how to do this?
Thanks.
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Newsgroups: comp.unix.shell
From:
Ed Morton <mortons... @gmail.com> Date: Fri, 14 Sep 2012 23:16:55 -0500
Local: Sat, Sep 15 2012 12:16 am
Subject: Re: Awk Split Question
On 9/14/2012 10:59 PM, Beery wrote:
> I have a file containing rows like
> MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
> I want to split the elements into an array with the "\n" being the separator. For some reason the following
> awk '{if($1~/MemTotal/){split($0,a,"kB");print a[1]}}'
You say you want to separate on "\n" but then you call split() with "kB" as the
separator instead.
> prints the whole row and fails to detect the separator. Any suggestion on how to do this?
You are using a valid syntax. Create a SMALL file that demonstrates the problem
and post a copy/paste of that file plus the command you're running plus the output.
Ed.
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Newsgroups: comp.unix.shell
From:
"Chris F.A. Johnson" <cfajohn... @gmail.com> Date: Sat, 15 Sep 2012 00:12:21 -0400
Local: Sat, Sep 15 2012 12:12 am
Subject: Re: Awk Split Question
On 2012-09-15, Beery wrote:
> I have a file containing rows like
> MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
> I want to split the elements into an array with the "\n" being the separator. For some reason the following
> awk '{if($1~/MemTotal/){split($0,a,"kB");print a[1]}}'
> prints the whole row and fails to detect the separator. Any suggestion on how to do this?
awk '
{
n = split($0,a,/\\n/)
print a[1]
print a[2]
print a[3]
}
'
-- http://shell.cfajohnson.com/ >
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Newsgroups: comp.unix.shell
From:
Beery <mentorbe... @gmail.com> Date: Fri, 14 Sep 2012 21:21:45 -0700 (PDT)
Local: Sat, Sep 15 2012 12:21 am
Subject: Re: Awk Split Question
On Friday, September 14, 2012 11:17:55 PM UTC-5, Chris F.A. Johnson wrote:
> On 2012-09-15, Beery wrote:
> > I have a file containing rows like
> > MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
> > I want to split the elements into an array with the "\n" being the separator. For some reason the following
> > awk '{if($1~/MemTotal/){split($0,a,"kB");print a[1]}}'
> > prints the whole row and fails to detect the separator. Any suggestion on how to do this?
> awk '
> {
> n = split($0,a,/\\n/)
> print a[1]
> print a[2]
> print a[3]
> }
> '
> --
> Chris F.A. Johnson, author <http://shell.cfajohnson.com/ >
> ===================================================================
> Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
> Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)
That worked. Thanks!!!
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Newsgroups: comp.unix.shell
From:
Beery <mentorbe... @gmail.com> Date: Fri, 14 Sep 2012 21:25:23 -0700 (PDT)
Local: Sat, Sep 15 2012 12:25 am
Subject: Re: Awk Split Question
On Friday, September 14, 2012 11:21:45 PM UTC-5, Beery wrote:
> On Friday, September 14, 2012 11:17:55 PM UTC-5, Chris F.A. Johnson wrote:
> > On 2012-09-15, Beery wrote:
> > > I have a file containing rows like
> > > MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
> > > I want to split the elements into an array with the "\n" being the separator. For some reason the following
> > > awk '{if($1~/MemTotal/){split($0,a,"kB");print a[1]}}'
> > > prints the whole row and fails to detect the separator. Any suggestion on how to do this?
> > awk '
> > {
> > n = split($0,a,/\\n/)
> > print a[1]
> > print a[2]
> > print a[3]
> > }
> > '
> > --
> > Chris F.A. Johnson, author <http://shell.cfajohnson.com/ >
> > ===================================================================
> > Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
> > Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)
> That worked. Thanks!!!
Just out of curiosity, if I wanted to define the separator using the -F option like
awk -F"\n" ....
I tried with the -F/\\n/ and that doesn't work.
How would I do that?
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Newsgroups: comp.unix.shell
From:
"Chris F.A. Johnson" <cfajohn... @gmail.com> Date: Sat, 15 Sep 2012 00:46:26 -0400
Local: Sat, Sep 15 2012 12:46 am
Subject: Re: Awk Split Question
On 2012-09-15, Beery wrote:
> On Friday, September 14, 2012 11:21:45 PM UTC-5, Beery wrote:
>> On Friday, September 14, 2012 11:17:55 PM UTC-5, Chris F.A. Johnson wrote:
>> > On 2012-09-15, Beery wrote:
>> > > I have a file containing rows like
>> > > MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
>> > > I want to split the elements into an array with the "\n" being the separator. For some reason the following
>> > > awk '{if($1~/MemTotal/){split($0,a,"kB");print a[1]}}'
>> > > prints the whole row and fails to detect the separator. Any suggestion on how to do this?
>> > awk '
>> That worked. Thanks!!!
> Just out of curiosity, if I wanted to define the separator using the -F option like
> awk -F"\n" ....
> I tried with the -F/\\n/ and that doesn't work.
> How would I do that?
-F'\\\\n'
-- http://shell.cfajohnson.com/ >
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Newsgroups: comp.unix.shell
From:
Kaz Kylheku <k... @kylheku.com> Date: Sat, 15 Sep 2012 05:23:42 +0000 (UTC)
Local: Sat, Sep 15 2012 1:23 am
Subject: Re: Awk Split Question
On 2012-09-15, Beery <mentorbe
... @gmail.com> wrote:
> I have a file containing rows like
> MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
LOL! See the "Simple Query" here:
http://rosettacode.org/wiki/Category:TXR
Note that that code will work even if the fields of /proc/meminfo are
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Newsgroups: comp.unix.shell
From:
"Chris F.A. Johnson" <cfajohn... @gmail.com> Date: Sat, 15 Sep 2012 03:38:24 -0400
Local: Sat, Sep 15 2012 3:38 am
Subject: Re: Awk Split Question
On 2012-09-15, Kaz Kylheku wrote:
> On 2012-09-15, Beery <mentorbe
... @gmail.com> wrote:
>> I have a file containing rows like
>> MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
> LOL! See the "Simple Query" here:
> http://rosettacode.org/wiki/Category:TXR
What? Yet another unnecessary language?
> Note that that code will work even if the fields of /proc/meminfo are
What does /proc/meminfo have to do with the question?
-- http://shell.cfajohnson.com/ >
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Newsgroups: comp.unix.shell
From:
"Mirko K." <mirkok.li... @googlemail.com> Date: Sat, 15 Sep 2012 12:00:54 +0200
Local: Sat, Sep 15 2012 6:00 am
Subject: Re: Awk Split Question
On 15.09.2012 09:38, Chris F.A. Johnson wrote:
> On 2012-09-15, Kaz Kylheku wrote:
>> On 2012-09-15, Beery <mentorbe
... @gmail.com> wrote:
>>> I have a file containing rows like
>>> MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
>> LOL! See the "Simple Query" here:
>> http://rosettacode.org/wiki/Category:TXR
> What? Yet another unnecessary language?
>> Note that that code will work even if the fields of /proc/meminfo are
> What does /proc/meminfo have to do with the question?
$ head -3 /proc/meminfo
MemTotal: 3096544 kB
MemFree: 659352 kB
Buffers: 413220 kB
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Newsgroups: comp.unix.shell
From:
Janis Papanagnou <janis_papanag... @hotmail.com> Date: Sat, 15 Sep 2012 14:04:43 +0200
Local: Sat, Sep 15 2012 8:04 am
Subject: Re: Awk Split Question
On 15.09.2012 06:25, Beery wrote:
[big snip]
[You should really fix your newsreader issues!]
> Just out of curiosity, if I wanted to define the separator using the -F option like
> awk -F"\n" ....
> I tried with the -F/\\n/ and that doesn't work.
> How would I do that?
With contemporary shells I prefer using the ANSI-strings
awk -F $'\n' ...
For self-contained awk programs, and programs that should work on
awk '
Janis
[*] So you can put the lines between the single quotes in a file,
awk -f xyz.awk
without specifying the FS on command line.
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Newsgroups: comp.unix.shell
From:
"Chris F.A. Johnson" <cfajohn... @gmail.com> Date: Sat, 15 Sep 2012 11:01:43 -0400
Local: Sat, Sep 15 2012 11:01 am
Subject: Re: Awk Split Question
On 2012-09-15, Mirko K. wrote:
> On 15.09.2012 09:38, Chris F.A. Johnson wrote:
>> On 2012-09-15, Kaz Kylheku wrote:
>>> On 2012-09-15, Beery <mentorbe
... @gmail.com> wrote:
>>>> I have a file containing rows like
>>>> MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
>>> LOL! See the "Simple Query" here:
>>> http://rosettacode.org/wiki/Category:TXR
>> What? Yet another unnecessary language?
>>> Note that that code will work even if the fields of /proc/meminfo are
>> What does /proc/meminfo have to do with the question?
> $ head -3 /proc/meminfo
Which is not what the OP asked about. The string is question has literal
backslash,n pairs, not newlines:
MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
-- http://shell.cfajohnson.com/ >
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Newsgroups: comp.unix.shell
From:
Kaz Kylheku <k... @kylheku.com> Date: Sat, 15 Sep 2012 18:24:30 +0000 (UTC)
Local: Sat, Sep 15 2012 2:24 pm
Subject: Re: Awk Split Question
On 2012-09-15, Chris F.A. Johnson <cfajohn
... @gmail.com> wrote:
> On 2012-09-15, Kaz Kylheku wrote:
>> On 2012-09-15, Beery <mentorbe
... @gmail.com> wrote:
>>> I have a file containing rows like
>>> MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
>> LOL! See the "Simple Query" here:
>> http://rosettacode.org/wiki/Category:TXR
> What? Yet another unnecessary language?
Whoa! This coming from a master of the unnecessary.
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Newsgroups: comp.unix.shell
From:
"Mirko K." <mirkok.li... @googlemail.com> Date: Sat, 15 Sep 2012 20:49:50 +0200
Local: Sat, Sep 15 2012 2:49 pm
Subject: Re: Awk Split Question
On 15.09.2012 17:01, Chris F.A. Johnson wrote:
> On 2012-09-15, Mirko K. wrote:
>> On 15.09.2012 09:38, Chris F.A. Johnson wrote:
>>> On 2012-09-15, Kaz Kylheku wrote:
>>>> On 2012-09-15, Beery <mentorbe
... @gmail.com> wrote:
>>>>> I have a file containing rows like
>>>>> MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
>>>> LOL! See the "Simple Query" here:
>>>> http://rosettacode.org/wiki/Category:TXR
>>> What? Yet another unnecessary language?
>>>> Note that that code will work even if the fields of /proc/meminfo are
>>> What does /proc/meminfo have to do with the question?
>> $ head -3 /proc/meminfo
> Which is not what the OP asked about. The string is question has literal
Yes, but the OP's data is most probably extracted from
/proc/meminfo. And that's what /proc/meminfo has to do with it.
Nothing more, nothing less.
> MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
It's well possible, that the OP is generating the data in a wrong
(or just different than needed) way, like:
$ python -c 'm=open("/proc/meminfo").read();print repr(m)'
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Newsgroups: comp.unix.shell
From:
"Chris F.A. Johnson" <cfajohn... @gmail.com> Date: Sat, 15 Sep 2012 22:38:46 -0400
Local: Sat, Sep 15 2012 10:38 pm
Subject: Re: Awk Split Question
On 2012-09-15, Kaz Kylheku wrote:
> On 2012-09-15, Chris F.A. Johnson <cfajohn
... @gmail.com> wrote:
>> On 2012-09-15, Kaz Kylheku wrote:
>>> On 2012-09-15, Beery <mentorbe
... @gmail.com> wrote:
>>>> I have a file containing rows like
>>>> MemTotal: 32959876 kB\nMemFree: 309820 kB\nBuffers: 563784 kB...
>>> LOL! See the "Simple Query" here:
>>> http://rosettacode.org/wiki/Category:TXR
>> What? Yet another unnecessary language?
> Whoa! This coming from a master of the unnecessary.
You must be thinking of someone else.
-- http://shell.cfajohnson.com/ >
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