使用AWK连接两个文件的某些行，然后对合并的文件进行排序

Question

I use the following AWK command to sort the contents after the first 24 lines of a file:

awk 'NR <= 24; NR > 24 {print $0 | "sort -k3,3 -k4,4n"}' file > newFile

Now I want to join two files first (now simply discard the first 24 lines for both files) and then sort the merged file. Is there any way to do it without generating a temporary merged file?

Answer 1

awk 'FNR > 24' file1 file2 | sort -k3,3 -k4,4n > newFile

FNR is the file record number (resets to 1 for the first line of each file). If you insist on having the sort inside the awk script, you can use:

awk 'FNR > 24 { print $0 | "sort -k3,3 -k4,4n" }' file1 file2 > newFile

but I prefer the shell to do my piping.