You don't need to escape everything! When in " doublequotes, escape doublequotes "\"", don't escape singlequotes and commas in doublequotes, "\'\," is interpreted as just "',".The escaping depends on the mode you are using. The \+ may be misleading - in -E mode, it matches a literal +, while without -E the \+ matches one or more preceding characters.It's better to use character classes ], or really just match a space. It is a gnu extension, not available everywhere. grep -l -r -include "*.js" "FIRSTWORD" * | xargs grep "SECONDwORD" So if you were searching for gnu, grep will also print the lines where gnu is embedded in larger words, such as cygnus or magnum. It is important to note that grep looks for the search pattern as a string, not a word. Get the first matched files from grep command and get all the files don't contain some word, but input files for second grep comes from result files of first grep command. To ignore case when searching, use the -i option (or -ignore-case ). ( -i is specified by POSIX.) However, if I change case on a filename, it won't work. Grep -RH "cats" /home/adam/Desktop/TomAndJerry #absolute directoryĪ short introduction to symbolic links, for anyone reading this answer and confused by my reference to them: i, -ignore-case Ignore case distinctions in both the PATTERN and the input files. If you want to find all mentions of the word cat in the directory /home/adam/Desktop/TomAndJerryĪnd you're currently in the directory /home/adam/Desktop/WorldDominationPlotĪnd you want to capture the filename but not the line number of any instance of the string "cats", and you want the recursion to follow symbolic links if it finds them, you could run either of the following grep -RH "cats". So if you want to find all files containing Darth Vader in the current directory or any subdirectories and capture the filename and line number, but do not want the recursion to follow symbolic links, the command would be grep -rnH "Darth Vader". Since you're trying to grep recursively, the following options may also be useful to you: -H: outputs the filename with the line If you want to follow symbolic links as well as actual directories (be careful of infinite recursion), grep -R "thing to be found" directory If you only want to follow actual directories, and not symbolic links, grep -r "thingToBeFound" directory Vendor/klaussilveira/gitter/lib/Gitter/Client.php:176: return $this->hidden Vendor/klaussilveira/gitter/lib/Gitter/Client.php:170: * Get hidden repository list Vendor/klaussilveira/gitter/lib/Gitter/Client.php:20: protected $hidden Tests/InterfaceTest.php:32: $options = array(self::$tmpdir. Src/GitList/Provider/GitServiceProvider.php:21: $options = $app Src/GitList/Application.php:43: 'git.hidden' => $config->get('git', 'hidden') ? $config->get('git', 'hidden') : array(), Typically, there is a branch of execution defined for each of the expected possible values of the variable and one catch-all or default branch for all other values. I can get: /home/vonc/gitpoc/passenger/gitlist/github #grep -include="*.php" -nRHI "hidden" * These direct the flow of program execution according to the value of a variable. This is equivalent to the -binary-files=without-match option.Īnd I can add ' i' ( -nRHIi), if I want case-insensitive results. Process a binary file as if it did not contain matching data Another approach is to separate what to exclude with grep by using a pipe to separate each match, like so: grep -Ev 'word1word2' example.txt. You can also use grep directly on files just as before as well: grep -v -e 'Word1' -e 'Word2' example.txt. Read all files under each directory, recursively this is equivalent to the -d recurse option. Any lines that contain Word1 or Word2 will be excluded from the printed results. (Note: phuclv adds in the comments that -n decreases performance a lot so, so you might want to skip that option) -R, -r, -recursive Hi All, What is the command to search a file for a case-insensitive match 1.grep -nc text filename 2.grep -i text filename 3.grep -i filename text 4.grep -nc filename text 5.grep -c text filename Thanks for your help (1 Reply). Prefix each line of output with the line number within its input file. Question: How to do the case insensitive search using FIND Example. Recurse in directories only searching file matching PATTERN. That includes the following options: -include=PATTERN (As noted by kronen in the comments, you can add 2>/dev/null to void permission denied outputs) I now always use (even on Windows with GoW - Gnu on Windows): grep -include="*.xxx" -nRHI "my Text to grep" *
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