When I add the second pipe, the file stop refreshing and it looks like no data is coming. ! Now I want to pipe this again into another grep, that will remove all the lines containing "Y". You need to restrict the find to only grep within plain files. So find . [^#;] means any character which is not # or ;. I'm tailing a log file with -f flag. grep command is one of the most frequently used UNIX command stands for "Global Regular Expression Print" like find, chmod or tar command in Unix. hello i want to make a bash script to grep all .asp file in specific directory that doesn't not contain a word like "program by x team" for security reason. i mean if the grep command find these word"program by x team", it will ignore the file in result. If the standard input is searched, the string ``(standard input)'' is written. *word2' -e 'word2. To save time is there a way of using the grep command to. That's working perfectly fine. *word1' ~/files/* When multiple files are provided to grep, it prints the Dear all, I wanted to use grep to search some files containing code - and the result was very disappointing: although I could see with my own eyes the expressions (written in the files), grep didn't g | The UNIX and Linux Forums /c: Counts the lines that contain the specified and displays the total. This may not work correctly for files whose names contain word2. Include or Exclude specific files names from search Using grep command it is also possible to include only specific files as part of the search. Then I'm piping this to grep, to find only lines that contain "X". -exec grep … will find files … Linux, Solaris, BSD, Ubuntu or IBM AIX is used to search files with matching patterns, by using grep command in Unix you can search a file which contains a particular word or particular … You want to use the "-L" option of grep:-L, --files-without-match Only the names of files not containing selected lines are written to standard output. (4) Display how many lines contain the search pattern Another option instructs grep to count the number of times a pattern appears. Note that ! grep command in Unix operating system e.g. Displays all lines that don’t contain the specified . -type d finds plain files, symbolic links, named pipes, sockets, and device files — everything except directories. grep "^[^#;]" smb.conf The first ^ refers to the beginning of the line, so lines with comments starting after the first character will not be excluded. It will not show any lines or words when you use the "-c" option. -exec grep … is not equivalent to -exec grep -v …. -exec grep -v … will find files that have at least one line that doesn’t match. [/off[line]] Doesn’t skip files … Thank you! /n: Precedes each line with the file’s line number. Path- names are listed once per file searched. For many files: grep word1 ~/files/* | grep word2 No need for a loop or cat. Search in a directory specifically through output files only (named oxxxxx), for those that do not contain the phrase completed without error, listing these oxxxx files in the terminal window. /i: Specifies that the search is not case-sensitive. In that case, combine the patterns manually into a single grep: grep -e 'word1. $ grep -n unix examplefile.txt 2:this is line 2 unix This makes it easier to locate the pattern in a large file that doesn't have its own line numbers. 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