你可以打字 Grep \t foo 或

grep '\t' foo

在文件foo中搜索制表符。您可能还可以使用其他转义代码，尽管我只测试了\n。虽然这相当耗时，而且不清楚为什么要这样做，但在zsh中，您还可以键入制表符，回到开头，grep并将制表符用引号括起来。

如果使用GNU grep，你可以使用perl风格的regexp:

grep -P '\t' *

These alternative binary identification methods are totally functional. And, I really like the one's using awk, as I couldn't quite remember the syntaxic use with single binary chars. However, it should also be possible to assign a shell variable a value in a POSIX portable fashion (i.e. TAB=echo "@" | tr "\100" "\011"), and then employ it from there everywhere, in a POSIX portable fashion; as well (i.e grep "$TAB" filename). While this solution works well with TAB, it will also work well other binary chars, when another desired binary value is used in the assignment (instead of the value for the TAB character to 'tr').

使用echo为你插入标签grep "$(echo -e \\t)"

您也可以使用Perl一行程序来代替grep响应。grep - p:

perl -ne 'print if /\t/' FILENAME

这对于AIX很有效。我正在搜索包含连接<\t>ACTIVE的行

voradmin cluster status | grep  JOINED$'\t'ACTIVE

 vorudb201   1       MEMBER(g) JOINED        ACTIVE
*vorucaf01   2       SECONDARY JOINED        ACTIVE