awk: build/scan.awk: line 21: function asort never defined awk: build/scan.awk: line 21: function asort never defined xargs: grep: terminated by signal 13 awk: build/scan.awk: line 21: function asort never defined awk: build/scan.awk: line 21: function asort never defined 解决方法: sudo apt-get install gawk