使用：
[root@dhcp-9-79 ~]# grep $'\n' log.txt [root@dhcp-9-79 ~]# grep $'\t' log.txt
这两个命令
[root@dhcp-9-79 ~]# ls anaconda-ks.cfg log.txt mno.txt original-ks.cfg [root@dhcp-9-79 ~]# cat log.txt ok 1 2 [root@dhcp-9-79 ~]# grep $'\n' log.txt ok 1 2 [root@dhcp-9-79 ~]# grep $'\t' log.txt ok 1
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