grep -v ^\# /etc/apache2/apache2.conf | grep . The-voption tellsgrepto invert its output, meaning that instead of printing matching lines, do the opposite and print all of the lines that don’t match the expression, in this case, the#commented lines. Note that we also usedgrep .at...
Search with Google-like Boolean query patterns using -% patterns with AND (or just space), OR (or a bar |), NOT (or a dash -), using quotes to match exactly, and grouping with ( ) (shown on the left side below); or with options -e (as an "or"), --and, --andnot, and ...
Example use: lets say you want to grep a file for the string -v - normally -v will be considered the option to reverse the matching meaning (only show lines that do not match), but with -- you can grep for string -v like this: 用例:假如你想grep一个文件来查找-v字符串,通常-v会...
--not Specifies that the following one or more -e PATTERN should not match selected lines, where --not -e PATTERN specifies the same as -N '.*PATTERN.*' but optimized to improve performance. -v, --invert-match Selected lines are those not matching any of the specified patterns. -w, ...
--L 或 --files-without-match : 列出文件内容不符合指定的样式的文件名称。--n 或 --line-number : 在显示符合样式的那一行之前,标示出该行的列数编号。--o 或 --only-matching : 只显示匹配PATTERN 部分。--q 或 --quiet或--silent : 不显示任何信息。--r 或 --recursive : 此参数的效果和指定...
)+ (By the way, see unicode blocks here.) You may still have to go more sophisticated with the grep though, if you don't want to match some things, for example Korean seems to use some latin pu... Votes 1 Upvote Translate Translate Jump to answer ...
转自:http://www.sqlite.com.cn/MySqlite/15/547.Html 4 贪婪与非贪婪——最后的回顾 4.1 一个例子的匹配原理回顾再回过头来看一下2.1.1节例子中正则,前面从应用角度进行了分析,但讨论过匹配原理后会发现,匹配过程并不是那么简单的,下面从匹配原理角度分析的匹配过程。 图4-1 首先由“<&...
要在PowerShell 中使用正则表达式,可以结合相关的命令和操作符。例如,-match操作符用于测试一个字符串是否匹配正则表达式;Select-Stringcmdlet 可在文本中搜索匹配正则表达式的行等。 例如: linux grep grep 指令后跟 “-P" 参数,则表示要使用 “PREs"
A regular expression usedforsearching.Tomatch a pattern beginningwitha dash, use the -e/--regexp flag.Forexample,tosearchforthe literal'-foo', you can use this flag:rg -e -foo You can also use the special'--' delimiter to indicate that no more flagswill be provided. Namely, the foll...
Used to specify one or more patterns to match. If more than one pat- tern is specified in pattern_list, they must be separated by newline characters (carriage returns). The -e option is useful for specifying a pattern that begins with a - (dash). Specifies a file that contains ...