linux 显示控制符号和制表符号

测试文件

[root@hadoop ~]# cat t.txt

wei     hong    rao#这里用tab分割
wei hong rao#这里用空格分割
raog#这里用^M(CTRL+V+M)分割
weihongrao#这里用^^(CTRL+V+^)分割
weihongrao#这里用^T(CTRL+V+T)分割

wei     hong    rao#这里用TAB键分割

[root@hadoop ~]# cat -t t.txt
wei^Ihong^Irao
wei hong rao
wei^Mhong^Mrao
wei^^hong^^rao
wei^Thong^Trao

wei^Ihong^Irao

或者用

[root@hadoop ~]# sed -n l t.txt
wei\thong\trao$
wei hong rao$
wei\rhong\rrao$
wei\036hong\036rao$
wei\024hong\024rao$
wei\thong\trao$