Help with awk/gawk 2

[sliverlight]

Hi,

Very much a newbie with gawk, so was wondering if anyone could help me. I need gawk to find the position of a string in a file and just print/output starting location it found it at.

I think gawk can probably do this, but didn't find any example/reference on it..

Thanks in advance for any help you can give..

Sliverlight

 

[feherke]

Hi

I need gawk to find the position of a string in a file

What kind of position ? Line number, character position in the line or absolute file position ?

awk '[COLOR=chocolate]match[/color][teal]([/teal][navy]$0[/navy][teal],[/teal][fuchsia]/and/[/fuchsia][teal])[/teal][teal]{[/teal][COLOR=chocolate]print[/color][green][i]"found on line"[/i][/green][teal],[/teal][blue]NR[/blue][teal],[/teal][green][i]"at position"[/i][/green][teal],[/teal][blue]RSTART[/blue][teal],[/teal][green][i]"file position"[/i][/green][teal],[/teal]l[teal]+[/teal][blue]RSTART[/blue][teal]}{[/teal]l[teal]+=[/teal][COLOR=chocolate]length[/color][teal]([/teal][navy]$0RS[/navy][teal])[/teal][teal]}[/teal]' /input/file

Tested with [tt]gawk[/tt] and [tt]mawk[/tt].


Feherke.

 

[sliverlight]

Hi Feherke,

Thanks for the reply.. I just need to find the character position..

Thank you

Sliverlight

 

[PHV]

I just need to find the character position
So, only use RSTART

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886

 

[sliverlight]

Sorry, Actually I would need to try and find the position not on the line, but position in the file..

Is this possible?

 

[sliverlight]

Sorry, ignore my previous post..

 

[feherke]

Hi

Oops. Now I see that I posted the Awk code with the sample word I tested it. And the use of the word "and" may be misleading for beginners. So the word to search for has to be written in place of that "and".


Feherke.

 

[feherke]

Hi

If you have [tt]gawk[/tt] and need on the file position, there is shorter way :

awk -vRS='word_to_search_for' 'BEGIN[teal]{[/teal]l[teal]=[/teal]1[teal]}[/teal][blue]RT[/blue][teal]{[/teal][COLOR=chocolate]print[/color] l[teal]+=[/teal][COLOR=chocolate]length[/color][teal]([/teal][navy]$0[/navy][teal]);[/teal]l[teal]+=[/teal][COLOR=chocolate]length[/color][teal]([/teal][blue]RT[/blue][teal])[/teal][teal]}[/teal]' /input/file

Feherke.

 

[sliverlight]

Thanks for all the help Feherke. Your first post worked fine for me, butcheers for the shorter solution..