Recursive grep on Unix without GNU grep. Your first answer will fail if directories have spaces (or newlines) in their names, and all will fail if they have newlines in their names. 3. then FOR will loop through every folder. In this example, we loop through all the files in the current directory. But older releases of Unix do not have GNU grep and do not have any option to grep recursively. Bash script to loop through folders and list files to text. Example. If you do not have GNU grep on your Unix system, you can still grep recursively, by combining the find command with grep: find . (1) ls writes one file per line (what the -1 option specifies) by default when the standard output is a pipe (so it’s superfluous in your answers). find -type d -name "TC_*" | sort That's what I have so far... it finds the appropriate directories and then sorts them. FOR /R. Loop through a folder and list files. This is the most popular file system cmdlet. For a recursive version you can try ftw() - “File Tree Walk” - see documentation here. This is all very easy because Linux includes GNU grep. Anything that you type into a DOS prompt on a Windows machine can be used in a bat file to quickly do something that you would otherwise have to repeat many times over. There are several aliases for ChildItem: gci, dir, ls. | xargs grep "text_to_find" This output goes to the original_filenames.txt file in the directory. This is done to find both visible and hidden directories within the present working directory, excluding the root directory: to just loop through directories: find -path './*' -prune -type d to include symlinks in the result: find -L -path './*' -prune -type d to do something to each directory (excluding symlinks): Ask Question Asked 3 years, 9 months ago. The body of the loop outputs the name of the directory, and then a list of all files and directories, recursively, in that directory. To filter all files with a specific file extension, you’d have to extract the extension from the filename which is just a character array. To create a bat file just make a file and give it the extension "bat". ... Use "find" to create a list of files. Loop through files (Recurse subfolders) Syntax FOR /R [[drive:]path] %%parameter IN (set) DO command Key drive:path: The folder tree where the files are located.set: A set of one or more files enclosed in parentheses (file1. DOS Batch is the Windows equivalent of shell scripting and can be used to perform all sorts of different actions. do ( rem enter the directory pushd %%a echo In directory: cd rem leave the directory … If this condition returns true, we simply output the value of file using the echo command. It should be noted that none of the above examples work if you want to explicitly specify a directory to iterate through (instead of the current directory, aka *) that has a space in it. 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