# sed删除最后一行需要使用单引号 [zxl@fedora DMCCA]$ sed -i '$d' hello [zxl@fedora DMCCA]$ cat hello [zxl@fedora DMCCA]$ [zxl@fedora DMCCA]$ [zxl@fedora DMCCA]$ A=111 [zxl@fedora DMCCA]$ echo $A 111 [zxl@fedora DMCCA]$ echo '$A' $A # 使用变量必须使用双引号 [zxl@fedo...
sed "1d;$d" file
2、删除第一行 [root@PC3 test]# sed 1d a.txt 2 Beijing 2004 3 Beijing 2005 4 Beijing 2006 5 Beijing 2007 6 Beijing 2008 7 Beijing 2007 8 Beijing 2005 9 Beijing 2006 10 Beijing 2007 11 Beijing 2008 12 Beijing 2007 [root@PC3 test]# tail -n +2 a.txt 2 Beijing 2004 3 Beijing 200...