[PD] bash gurus in the list?

Mathieu Bouchard matju at artengine.ca
Thu Jun 3 21:33:46 CEST 2010

On Thu, 3 Jun 2010, enrike wrote:

> BLKID = `blkid | grep ${2}1 | awk '{ for(i=1;i<NF;i++) { if( $i ~ "UUID" ) { 
> print $i } }
> if anyone could break it into chunks or pseudocode for me it would be really 
> helpful...

it's missing a final ' for awk and a final ` for the value to assign to 

it looks for the value of $2, followed by a "1" character, in the output 
of BLKID, then it looks for a field that contains the letters UUID. The 
field number ($i) is then assigned to the BLKID variable. Field numbers 
start at 1. Delimiters are any sequence of spaces and tabs. If a delimiter 
begins a line, the delimiter is ignored. NF is the number of fields and 
thus the for-loop should say i<=NF because i<NF would skip the last field.

what do you need to know ?

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| Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801

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