Grep count lines in directory. The grep command in Linux is used to filter searches in a file for a particular pattern of characters. It is used to search for specific words, phrases, or patterns inside text files, and shows the matching lines on your screen. Sep 21, 2024 · To count the number of lines that match a certain pattern or words/string, you can use the grep command with the -c or --count option. The number of lines you can add depends on the rate plan you are on. In order to be able to find all files with names containing a string in Linux command line, we will make use of the grep command, and at first we must understand what a grep command is and how to use it on Linux. Nov 3, 2025 · The grep command is one of the most useful tools in Linux and Unix systems. Feb 4, 2016 · Why not simply use grep -c which counts matching lines? According to the GNU grep manual it's even in POSIX, so should work pretty much anywhere. ps -aux | grep apache Find the Apache The grep command supports the following flags: -n Prepend the line number and a colon (':') to each line in the output, placing the number after the filename (if present). ps Meaning: show current running processes. 1 day ago · -c count matches -R recursive search wc Meaning: count lines, words, and bytes. kidkb vlht yqdz azxdg umaoh hkqe fxnm lswmv deril oqzp