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 --fixed-strings "exact_string" path/to/file - Search for a pattern in all files recursively in a directory, showing line numbers of matches, ignoring binary files: grep --recursive --line-number --binary-files=without-match "search_pattern" path/to/directory - 【重要】Use extended re...
grep searches the named input FILEs for lines containing a match to the given PATTERN. If no files are specified, or if the file “-” is given, grep searches standard input. By default, grep prints the matching lines. grep在命名的输入文件中搜索与给定模式匹配的行。如果没有指定文件,或者给...
You can use the same idea to match phrases if they appear as a single line, with -x/--line-regexp. user@linux:~$ cat file.txt | grep -w word word grep With Multiple Strings To use multiple phrases, separated by newlines, to capture relevant matches in a file or text stream from...
A pattern to search for. This option can be provided multiple times, where all patterns given are searched. -F, --fixed-strings Treat the pattern as a literal string instead of a regular expression. -i, --ignore-case Searches case insensitively. ...
-F matches by literal strings (instead of regex) -v inverts the match -e allows for multiple search patterns (all literal and inverted) Share Follow edited Aug 18, 2017 at 15:01 user2394284 5,89844 gold badges3535 silver badges4141 bronze badges answered Nov 1, 2016 at 23:50 wis...
11. Why does the empty pattern match every input line? The grep command searches for lines that contain strings that match a pattern. Every line contains the empty string, so an empty pattern causes grep to find a match on each line. It is not the only such pattern: ‘^’, ‘$’, ...
if multiple patterns match a single line we'll display the line in each of the output groups group headings are exact reprints of the search patterns (ie, won't be reformatting the group headers as is done in the question where search pattern I/O error becomes group he...
-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...
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 ...