How do I recursively grep all directories and subdirectories?
Feb 16, 2016 · grep -r "texthere" . The first parameter represents the regular expression to search for, while the second one represents the directory that should be searched. In this case, . …
What is the difference between grep -e and grep -E option?
grep -e PATTERN unless, as stated in an earlier Answer and in the man pages, there are multiple search patterns, or to protect a pattern beginning with a hyphen (-).
linux - What is the point of "grep -q" - Stack Overflow
May 16, 2019 · Moreover, this is a lot faster than a regular grep invocation, since it can exit immediately when the first match is found, rather than needing to unconditionally read (and …
Using the star sign in grep - Stack Overflow
Jul 6, 2016 · I am trying to search for the substring "abc" in a specific file in linux/bash So I do: grep '*abc*' myFile It returns nothing. But if I do: grep 'abc' myFile It returns matches correctly. …
How to run grep with multiple AND patterns? - Unix & Linux Stack …
Mar 25, 2016 · I would like to get the multi pattern match with implicit AND between patterns, i.e. equivalent to running several greps in a sequence: grep pattern1 | grep pattern2 | ... So how to …
How to perform grep operation on all files in a directory?
430 Working with xenserver, and I want to perform a command on each file that is in a directory, grep ping some stuff out of the output of the command and appending it in a file. I'm clear on …
How can I use grep to find a word inside a folder?
Nov 8, 2010 · 165 grep -nr string my_directory Additional notes: this satisfies the syntax grep [options] string filename because in Unix-like systems, a directory is a kind of file (there is a …
Find all files containing a specific text (string) on Linux
Jun 6, 2013 · How do I find all files containing a specific string of text within their file contents? The following doesn't work. It seems to display every single file in the system. find / -type f …
Regex (grep) for multi-line search needed - Stack Overflow
Sep 15, 2010 · I'm running a grep to find any *.sql file that has the word select followed by the word customerName followed by the word from. This select statement can span many lines …
Negative matching using grep (match lines that do not contain foo ...
How do I match all lines not matching a particular pattern using grep? I tried this: grep '[^foo]'