https://blog.niekun.net/tag/cat/ https://blog.niekun.net/archives/534.html 2019-11-18T21:48:00+08:00 cat 是 Linux 下常用的一个命令。主要功能是：显示文件内容/新建文件/合并文件输出文件内容到终端输出一个文件：cat file1 输出多个文件：cat file1 file2 输出文件内容，显示行号：cat -n song.txt 1 "Heal The World" 2 There's A Place In 3 Your Heart 4 And I Know That It Is Love 5 And This Place Could行尾和空行显示 $:cat -e test hello everyone, how do you do?$ $ Hey, am fine.$ How's your training going on?$ $新建文件：新建空文件：cat /dev/null > file 将文件复制到新文件：cat file1 > file2 将文件复制添加到文件末尾：cat file1 >> file2 将多个文件合并到一个文件：cat file1 file2 file3 > file_new cat file* > file_new