![]() ![]() I would also suggest that you postfix the regexp with $ in order to anchor it to the end (thus ensuring that the regexp matches filenames that ends with ".txt"): ls /some/path/some/dir/ | grep 'some_mask_.*\. ![]() needs to be prefixed with a backslash since it has special significance as a regexp that matches a single character. Putting this together your command line version should be: ls /some/path/some/dir/ | grep 'some_mask_.*\.txt' | wc -lĪnd the script: iFiles=`ls /some/path/some/dir/ | grep 'some_mask_.*\.txt' | wc -l` In addition you need to write the pattern as a regexp and not as a wildcard match (which bash uses for matching). Grep allows you to find/select any data in the output of another command: command grep search In PowerShell, you can use the Select-String cmdlet to find a text string in a file. If you want to ensure that the pattern is used by grep then you need to enclose it in single quotes. Grep in PowerShell Using the Select-String Cmdlet In Linux/Unix, the grep command is used to find a text (string) or errors in a log file. for and the filename: grep cysa example.txt You can search multiple files by. You may need to add this command to your /.bashrc to ensure the agent starts when you open a Git Bash terminal. What you do next is up to you.The problem here is that grep some_mask_*.txt is expanded by the shell and not by grep, so most likely you have a file in the directory where grep is executed which matches some_mask_*.txtand that filename is then used by grep as a filter. You might be able to use the find command inside a graphical text editor. ![]() The search.txt file then includes both the file information and the text that has been found for sake of checking that you have what you want. Select-String -Path *.sas -Pattern "proc report" > c:\temp\search.txt It works well once you know what to do so here is an example: It displays the file name, line number, and text in the line. Select-String searches for text or text patterns in the input string or file. It could look something like this: I am searching for files that look like '\something.txt'. Select-String cmdlet in Powershell works similar to grep in UNIX and findstr in PowerShell. It would be more efficient to pull the filenames out the logs via a regular expression and see if each of those is in your list. ![]() i ingnore case sensitive can be used to add inverted case string. the -r indicates a recursive search that searches for the specified string in the given directory and sub directory looking for the specified string in files, program, etc. The input to the -Path switch can be a filename or a wildcard expression while that to the -Pattern can be a text string enclosed in quotes or a regular expression. PowerShell Grep equivalent cmdlet is Select-String which uses regular expressions to search string in files. another syntax to grep a string in all files on a Linux system recursively. For example, the following command displays all lines containing ERROR in a text file or stdout: Select-String -Path c:\tmp\makeappsxtracesxs.txt -Pattern 'ERROR'. The Get-ChildItem-line in your code can be optimized however. This will miss instances where the string occurs 2+ times on one line, though. As for speed Get-ChildItem is notoriously slow in PowerShell (since PowerShell likes to fetch objects rather than just text representation of objects) and there are various workarounds for this. This will list each occurrence on a single line and then count the number of lines. In PowerShell, you can use the Select-String cmdlet to find a text string in a file. Instead of using -c, just pipe it to wc -l. While you can have the output appear on screen, it always seems easier to send it to a file for subsequent and that is what I am doing above. Grep allows you to find/select any data in the output of another command: command grep search. Usefully, this turns out to be the case but I found that the native functionality does not use what I have used before. Having made plenty of use of grep on the Linux/UNIX command and findstr on the legacy Windows command line, I wondered if PowerShell could be used to search the contents of files for a text string. Searching file contents using PowerShell 25th October 2018 ![]()
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