刪除線從.txt呆子

Question

好了，所以如何從new.txt刪除行，如果他們在tried.txt，

例如，如果new.txt包含123和tried.txt包含123，所以從in.txt除去123和結果輸出到new2.txt。

Answer 1

使用grep：

grep -F -x -v -f tried.txt new.txt > new2.txt 

使用awk：

awk "NR==FNR{a[$0];next} !($0 in a)" tried.txt new.txt > new2.txt 

任何上述命令應該爲你工作。請參閱：

• https://unix.stackexchange.com/questions/28158/is-there-a-tool-to-get-the-lines-in-one-file-that-are-not-in-another
• Remove Lines from File which appear in another File
• Print lines from one file that are not contained in another file