Hi, a simple(?) newbie question..

Is there a simple way of producing a list of all the words in a text file
that start with a $. I tried cat file | grep '^\$' but that seems to
just give me all the blank lines.

On 1/4/2008 3:36 PM, Brian Greaney wrote:
> Hi, a simple(?) newbie question..
>
> Is there a simple way of producing a list of all the words in a text file
> that start with a $. I tried cat file | grep '^\$' but that seems to
> just give me all the blank lines.

I every "word" on a line of it's own or could there be multiple words on a line?
How do you define a "word" - is there some specific set of characters (e.g.
white space, punctuation, digits, etc.) a "word" can/can't contain?

Ed.

On 2008-01-04, Brian Greaney wrote:

> Hi, a simple(?) newbie question..
>
> Is there a simple way of producing a list of all the words in a text file
> that start with a $. I tried cat file | grep '^\$' but that seems to
> just give me all the blank lines.

Do you mean all the _words_ that start with "$" or all the _lines_
that start with "$"?


--
Two of the most famous products of Berkeley are LSD and Unix.
I don't think that this is a coincidence. [anonymous]

On Fri, 04 Jan 2008 15:48:38 -0600, Ed Morton wrote:

>
>
> On 1/4/2008 3:36 PM, Brian Greaney wrote:
>> Hi, a simple(?) newbie question..
>>
>> Is there a simple way of producing a list of all the words in a text file
>> that start with a $. I tried cat file | grep '^\$' but that seems to
>> just give me all the blank lines.
>
> I every "word" on a line of it's own or could there be multiple words on a line?
> How do you define a "word" - is there some specific set of characters (e.g.
> white space, punctuation, digits, etc.) a "word" can/can't contain?
>
> Ed.
Thanks for the prompt response, there can be several words per line, they
are always alpha characters only. Simple example:

write2file "set atmif/$ATMIF vpt/$VPI vpd correlationTag \"$PVC to $Rnode
AtmIf/$RATMIF Vpt/$RVPI \""

Brian Greaney wrote:
> On Fri, 04 Jan 2008 15:48:38 -0600, Ed Morton wrote:
>
>>
>> On 1/4/2008 3:36 PM, Brian Greaney wrote:
>>> Hi, a simple(?) newbie question..
>>>
>>> Is there a simple way of producing a list of all the words in a text file
>>> that start with a $. I tried cat file | grep '^\$' but that seems to
>>> just give me all the blank lines.
>> I every "word" on a line of it's own or could there be multiple words on a line?
>> How do you define a "word" - is there some specific set of characters (e.g.
>> white space, punctuation, digits, etc.) a "word" can/can't contain?
>>
>> Ed.
> Thanks for the prompt response, there can be several words per line, they
> are always alpha characters only. Simple example:
>
> write2file "set atmif/$ATMIF vpt/$VPI vpd correlationTag \"$PVC to $Rnode
> AtmIf/$RATMIF Vpt/$RVPI \""

With space as separator:

$ tr ' ' '\n' < filename | grep '^\$'
$Rnode


With space, / and " as separator:

$ tr ' /"' '\n' < filename | grep '^\$'
$ATMIF
$VPI
$PVC
$Rnode
$RATMIF
$RVPI

--
Best regards | Be nice to America or they'll bring democracy to
Cyrus | your country.

On Fri, 04 Jan 2008 23:19:19 +0100, Cyrus Kriticos wrote:

> Brian Greaney wrote:
>> On Fri, 04 Jan 2008 15:48:38 -0600, Ed Morton wrote:
>>
>>>
>>> On 1/4/2008 3:36 PM, Brian Greaney wrote:
>>>> Hi, a simple(?) newbie question..
>>>>
>>>> Is there a simple way of producing a list of all the words in a text file
>>>> that start with a $. I tried cat file | grep '^\$' but that seems to
>>>> just give me all the blank lines.
>>> I every "word" on a line of it's own or could there be multiple words on a line?
>>> How do you define a "word" - is there some specific set of characters (e.g.
>>> white space, punctuation, digits, etc.) a "word" can/can't contain?
>>>
>>> Ed.
>> Thanks for the prompt response, there can be several words per line, they
>> are always alpha characters only. Simple example:
>>
>> write2file "set atmif/$ATMIF vpt/$VPI vpd correlationTag \"$PVC to $Rnode
>> AtmIf/$RATMIF Vpt/$RVPI \""
>
> With space as separator:
>
> $ tr ' ' '\n' < filename | grep '^\$'
> $Rnode
>
>
> With space, / and " as separator:
>
> $ tr ' /"' '\n' < filename | grep '^\$'
> $ATMIF
> $VPI
> $PVC
> $Rnode
> $RATMIF
> $RVPI

Excellent, I think I need to read the man page for tr!
Thank you very much

On Fri, 04 Jan 2008 21:56:12 +0000, Adam Funk wrote:

> On 2008-01-04, Brian Greaney wrote:
>
>> Hi, a simple(?) newbie question..
>>
>> Is there a simple way of producing a list of all the words in a text file
>> that start with a $. I tried cat file | grep '^\$' but that seems to
>> just give me all the blank lines.
>
> Do you mean all the _words_ that start with "$" or all the _lines_
> that start with "$"?

Thanks for your response, as per another post I have a solution. BTW it
was just the words not the lines

On 1/4/2008 4:05 PM, Brian Greaney wrote:
> On Fri, 04 Jan 2008 15:48:38 -0600, Ed Morton wrote:
>
>
>>
>>On 1/4/2008 3:36 PM, Brian Greaney wrote:
>>
>>>Hi, a simple(?) newbie question..
>>>
>>>Is there a simple way of producing a list of all the words in a text file
>>>that start with a $. I tried cat file | grep '^\$' but that seems to
>>>just give me all the blank lines.
>>
>>I every "word" on a line of it's own or could there be multiple words on a line?
>>How do you define a "word" - is there some specific set of characters (e.g.
>>white space, punctuation, digits, etc.) a "word" can/can't contain?
>>
>> Ed.
>
> Thanks for the prompt response, there can be several words per line, they
> are always alpha characters only. Simple example:
>
> write2file "set atmif/$ATMIF vpt/$VPI vpd correlationTag \"$PVC to $Rnode
> AtmIf/$RATMIF Vpt/$RVPI \""
>
>

With GNU awk (to use an RE as the RS):

$ cat file
write2file "set atmif/$ATMIF vpt/$VPI vpd correlationTag \"$PVC to $Rnode
AtmIf/$RATMIF Vpt/$RVPI \""
$ gawk -v RS='[^[:alpha:]$]' '/^\$/' file
$ATMIF
$VPI
$PVC
$Rnode
$RATMIF
$RVPI

Regards,

Ed.