Hello, I have about 8000 files in a directory all having names like file000001.txt file000002.txt file000003.txt file000004.txt ---------- ---------- file007999.txt file008000.txt Now I need to do 2 things: 1. I found out that I donot actually need the data from the files whose names are above 'file003000.txt'. So I want to delete the 5000 files from 'file003001.txt' through 'file008000.txt' using awk. (I donot know how to do this part) I will then take the values of column 3 of each of the remaining files if column 1 == 20 and put these in 'select.txt' file (I know how to do this part). 2. I believe it is possible (but I am not being able to do it) even without deleting those 5000 files to write an awk command that will only take files which has values less than / equal to 'file003000.txt' and do the latter part on them i.e. taking the values of column 3 of each file if column 1 == 20 and put these in 'select.txt' file. In other words it is something like if VARIABLE<=3000 in 'file00VARIABLE.txt' consider it otherwise ignore it. How can I do both of the above using awk (one liner preferred than scripts). Any help is highly appreciated. Thank you.