Do the following: grep -rnw ‘/path/to/somewhere/’ -e ‘pattern’ -r or -R is recursive, -n is line number, and -w stands for match the whole word. -l (lower-case L) can be added to just give the file name of matching files. -e is the pattern used during the search Along with these, –exclude, –include, –exclude-dir flags … Read more
grep by design returns code 1 if the given string was not found. Ansible by design stops execution if the return code is different from 0. Your system is working properly. To prevent Ansible from stopping playbook execution on this error, you can: add ignore_errors: yes parameter to the task use failed_when: parameter with a … Read more
Use this command: egrep -lRZ “\.jpg|\.png|\.gif” . \ | xargs -0 -l sed -i -e ‘s/\.jpg\|\.gif\|\.png/.bmp/g’ egrep: find matching lines using extended regular expressions -l: only list matching filenames -R: search recursively through all given directories -Z: use \0 as record separator “\.jpg|\.png|\.gif”: match one of the strings “.jpg”, “.gif” or “.png” .: start the … Read more
You can use multiple –include flags. This works for me: grep -r –include=*.html –include=*.php –include=*.htm “pattern” /some/path/ However, you can do as Deruijter suggested. This works for me: grep -r –include=*.{html,php,htm} “pattern” /some/path/ Don’t forget that you can use find and xargs for this sort of thing too: find /some/path/ -name “*.htm*” -or -name “*.php” … Read more
You can use the -i flag which makes your pattern case insensitive: grep -iF “success…” file1 Also, there is no need for cat. grep takes a file with the syntax grep <pattern> <file>. I also used the -F flag to search for a fixed string to avoid escaping the ellipsis.
There is pdfgrep, which does exactly what its name suggests. pdfgrep -R ‘a pattern to search recursively from path’ /some/path I’ve used it for simple searches and it worked fine. (There are packages in Debian, Ubuntu and Fedora.) Since version 1.3.0 pdfgrep supports recursive search. This version is available in Ubuntu since Ubuntu 12.10 (Quantal).
No need to find. If you are just looking for a pattern within a specific directory, this should suffice: grep -hn FOO /your/path/*.bar Where -h is the parameter to hide the filename, as from man grep: -h, –no-filename Suppress the prefixing of file names on output. This is the default when there is only one … Read more
Try this little trick to coax grep into thinking it is dealing with multiple files, so that it displays the filename: grep ‘pattern’ file /dev/null To also get the line number: grep -n ‘pattern’ file /dev/null
Just use the –include parameter, like this: grep -inr –include \*.h –include \*.cpp CP_Image ~/path[12345] | mailx -s GREP email@domain.example That should do what you want. To take the explanation from HoldOffHunger’s answer below: grep: command -r: recursively -i: ignore-case -n: each output line is preceded by its relative line number in the file –include … Read more
The other answers here show some ways you can contort different varieties of regex to do this, although I think it does turn out that the answer is, in general, “don’t do that”. Such regular expressions are much harder to read and probably slower to execute than just combining two regular expressions using the boolean … Read more