Match Multiple Strings 匹配多个字符串 匹配多个模式或正则表达式(Match Multiple Pattern or Regex) Now we want to use multiple regular expression or pattern in our match term. We can specify standard regular expression with the same way. We will change some letters with . in this example. 现在,...
grep is a powerful command-line tool that allows you to searches one or more input files for lines that match a regular expression and writes each matching line to standard output. In this article, we’re going to show you how to use GNU grep to search for multiple strings or patterns....
(Only Print Match of Grep) We may want to get only the match string. Say we need IP addresses and only need the IP address nothing else.-ooption only prints exactly matching strings 我们可能只想获取匹配字符串。 假设我们需要IP地址,仅需要IP地址就可以了。-o选项仅打印完全匹配的字符串 $ gre...
With the -v, --invert-match option (see below), count non-matching lines. --color[=WHEN], --colour[=WHEN] Surround the matched (non-empty) strings, matching lines, context lines, file names, line numbers, byte offsets, and separators (for fields and groups of context lines) with ...
Find multiple strings You can also use grep to find multiple words or strings. You can specify multiple patterns by using the -e switch. Let’s try searching a text document for two different strings: $ grep -e 'Class 1' -e Todd Students.txt ...
You can use the same idea to match phrases if they appear as a single line, with-x/--line-regexp. user@linux:~$catfile.txt|grep-w word word grepWith Multiple Strings To use multiple phrases, separated by newlines, to capture relevant matches in a file or text stream from a program,...
grep - print lines matching a patterngrep [OPTIONS] PATTERN [FILE...] grep [OPTIONS] [-e PATTERN | -f FILE] [FILE...]
In this example, pa*ttern is the regex pattern you want to match. The*metacharacter after the character a allows for zero or more occurrences of the preceding character (a). So, this command will match strings like “pttern”, “patern”, “paatern”, and “pattern” in the file. ...
With the -v, --invert-match option (see below), count non-matching lines. (-c is specified by POSIX.) --color[=WHEN], --colour[ Surround the matched (non-empty) strings, matching lines, context lines, file names, line numbers, byte offsets, and separators (for fields and groups ...
-c, --count Suppress normal output; insteadprint a countof matching lines for each input file. With the-v, --invert-matchoption (see below), count non-matching lines. (-c is specified by POSIX.) --color[=WHEN], --colour[=WHEN] Surround(围绕) the matched (non-empty) strings, matchi...