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

grep "$(printf '\t')"在Mac OS X上为我工作

你可能想使用grep "$(echo -e '\t')"

唯一的要求是echo能够解释反斜杠转义。

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 ...

使用gawk，将字段分隔符设置为TAB (\t)并检查字段的数量。如果多于1，则有/有制表符

awk -F"\t" 'NF>1' file

在其他答案中给出的$'\t'符号是特定于shell的——它似乎在bash和zsh中工作，但不是通用的。

注意:下面是针对fish shell的，在bash中不起作用:

在fish shell中，可以使用不带引号的\t，例如:

grep \t foo.txt

或者可以使用十六进制或unicode符号，例如:

grep \X09 foo.txt
grep \U0009 foo.txt

(这些符号对于更深奥的字符很有用)

因为这些值必须是不加引号的，所以可以将加引号的值和不加引号的值进行拼接:

grep "foo"\t"bar"