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To clarify the step #2 command, it will return files with a string matching the pattern /var/lib/pgsql/data except those files that are in a path with a directory named "proc" or "sys". When -R options is used, The Linux grep command will search. How can I do that For example: Parent-Directory Sub-Directory 1 input save bad Sub-Directory 2 input save bad Sub-Directory 3 input save bad Each of the sub-directories contain three folders named (input, save and bad). To grep All Files in a Directory Recursively, we need to use -R option. These exclude-dir flags will exclude any directory path with "proc" or "sys" - not just the root "proc" and "sys" directories.Ģ. I would like to search for files stored in the sub-directories. The "-exclude-dir=" flag allows you to exclude results with "proc" or "sys" directories. Knowing that you want to exclude any file that resides in a directory path having a directory with the name "proc" or "sys" can make the search quicker. Searching for lower case patterns with the "-i" flag will return files that match the string's pattern in lower case or in upper case or in any combination thereof. SearchOption: This method is used to specify whether to search the current directory or the current directory with all subdirectories. So to do this task we use the following methods: 1. Grepping for patterns with forward slashes don't require quotes around the patterns when using the grep command. Given files and directories, now our task is to search these files and directories using C. You want the results that match the string above in a case-insensitive way.
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You want to list files that have the above pattern. You are not interested in the files in directory paths that have one or more parent (or any antecedent) directories named "proc" nor "sys". Problem scenario: How do you use the grep command to recursively search most subdirectories (excluding some directories) for a pattern? You want to find a file with a string like this: