使用'sed-as-grep'方法，但是用个人偏好的可见字符替换制表符是我最喜欢的方法，因为它清楚地显示了哪些文件包含所请求的信息，以及它在行的位置:

sed -n 's/\t/\*\*\*\*/g' file_name

如果您希望使用行/文件信息，或其他grep选项，但也希望看到制表符的可见替换，您可以通过

grep -[options] -P '\t' file_name | sed 's/\t/\*\*\*\*/g'

举个例子:

$ echo "A\tB\nfoo\tbar" > test
$ grep -inH -P '\t' test | sed 's/\t/\*\*\*\*/g'
test:1:A****B
test:2:foo****bar

编辑:显然，上面的内容只对查看文件内容以定位选项卡有用——如果目标是将选项卡作为更大的脚本会话的一部分来处理，那么这没有任何有用的用途。

使用echo为你插入标签grep "$(echo -e \\t)"

如果使用GNU grep，你可以使用perl风格的regexp:

grep -P '\t' *

基本上有两种解决方法:

(Recommended) Use regular expression syntax supported by grep(1). Modern grep(1) supports two forms of POSIX 1003.2 regex syntax: basic (obsolete) REs, and modern REs. Syntax is described in details on re_format(7) and regex(7) man pages which are part of BSD and Linux systems respectively. The GNU grep(1) also supports Perl-compatible REs as provided by the pcre(3) library. In regex language the tab symbol is usually encoded by \t atom. The atom is supported by BSD extended regular expressions (egrep, grep -E on BSD compatible system), as well as Perl-compatible REs (pcregrep, GNU grep -P). Both basic regular expressions and Linux extended REs apparently have no support for the \t. Please consult UNIX utility man page to know which regex language it supports (hence the difference between sed(1), awk(1), and pcregrep(1) regular expressions). Therefore, on Linux: $ grep -P '\t' FILE ... On BSD alike system: $ egrep '\t' FILE ... $ grep -E '\t' FILE ... Pass the tab character into pattern. This is straightforward when you edit a script file: # no tabs for Python please! grep -q ' ' *.py && exit 1 However, when working in an interactive shell you may need to rely on shell and terminal capabilities to type the proper symbol into the line. On most terminals this can be done through Ctrl+V key combination which instructs terminal to treat the next input character literally (the V is for "verbatim"): $ grep '<Ctrl>+<V><TAB>' FILE ... Some shells may offer advanced support for command typesetting. Such, in bash(1) words of the form $'string' are treated specially: bash$ grep $'\t' FILE ... Please note though, while being nice in a command line this may produce compatibility issues when the script will be moved to another platform. Also, be careful with quotes when using the specials, please consult bash(1) for details. For Bourne shell (and not only) the same behaviour may be emulated using command substitution augmented by printf(1) to construct proper regex: $ grep "`printf '\t'`" FILE ...

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。

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').