Shell Programming and Scripting

Hi,
Could you show input and output example, please ?
Regards.

Code:

awk ' FILENAME=="strings.txt" {arr[$0]++; next}
        FILENAME=="data.txt" { if( $5 in arr){next}; print$0} ' strings.txt data.txt>proc_data.txt

The order of the files as arguments is important - you have to read the strings file first to build the array.

Code:

awk 'NR==FNR{A[$0]++;next}!(A[$5])' strings.txt file.txt

If strings.txt is edited manually, then the use of $1 will be more reliable, because this will discard spurious spacing and $5 in A is more efficient than A[$5], since this would create unnecessary array elements (minor improvement).

Code:

awk 'NR==FNR{A[$1]; next}!($5 in A[$5])' strings.txt file.txt

Field separators can be added of course, with the default field separators, strings.txt could be more aptly named words.txt, since that would mean the strings cannot contain spacing

I think Scrutinizer accidentally copied more of Yoda's code than he intended to. I believe that what Scrutinizer meant was:

Code:

awk 'NR==FNR{A[$1]; next}!($5 in A)' strings.txt file.txt