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grep -l "DUMMY_B" *; while read file; do echo cp $file newdirectory/; done


remove the echo, if you are fine with the output

grep "DUMMY_B" *; cp -p /targetdirectory.

Lol I hope it would help :)

try with awk..


awk -F, '{if($2 ~ /AAA/) {$2="AAAdummy"}else if($2 == "" && NF > 2) { $2 = "dummy"}}1' OFS=, file


with sed....


sed 's/AAA[a-zA-Z0-9\t]\+,/AAAdummy,/; s/,,/,dummy,/' file

sed '3s/dummy/&A/' yourfile > temp
mv temp yourfile

is this only one change..?

use sed

sed 's/dummy/dummy_01/g'


need some more details if this you don't want..

grep "PDT_AP21_B" infile > another_file