How to grep query all files for two strings

问题:

Here we go:

I need to query php files which both have a TODO statement as well as my name. Both strings could be anywhere in the document (ie. line) and be positioned anywhere on 0-infinite lines (position 0-n).

How to grep query for my name:

find -name '*.php' -exec grep -in "fincken" {} +

output:

./some/file.php:51: ramon fincken
./somefile.php:2: rfincken

How to grep query for the TODOs

find -name '*.php' -exec grep -n "TODO" {} +

output:

./some/file.php:53: // TODO: foobar!
./some/otherfile.php:53: // TODO: foobar?

I need to combine both grep queries (or their results) so I am expecting this as result:

./some/file.php

I have tried operators in one grep, but they expected both strings on the same line and in a particular order or .. came up with all results (OR .. OR) instead of ( AND )

回答1:

this line looks ugly, but it should give what you want:

find whatever...|xargs grep -il 'fincken'
                |xargs grep -il 'todo'
                |xargs grep -in -e'todo' -e'fincken'  

The output would look like:

/foo/bar/file : 100:TODO
/foo/bar/file : 101:fincken

only files with both TODO and fincken would be listed.

回答2:

Ask the first grep to return just the file name and then pipe to another grep:

find -name '*.php' -exec grep -li "fincken" {} + | xargs grep -l "TODO"

From man grep, -l (L) returns file name. This way, the find comman will return a list of files that will be processed one by one through the xargs command.

Your output will be the list of files which contain both "fincken" and "TODO". You can of course pipe more xargs grep -l if you want to add more words to find.

---

You can also do use of grep alone like this, using -R to do a recursive search:

grep -Rl --include="*php" "TODO" * | xargs grep -il "fincken"

Note I moved the TODO grep to be done in the first place, because you use -i for "fincken" and it is way slowlier. This way, the grep -i will only be run on the already filtered results.

回答3:

You can pipe the first grep through a second one, get the name of the file and skip repetitions:

find -name '*.php' -exec grep -in "fincken" {} + | grep TODO | cut -d: -f1 | uniq

回答4:

People are making this more complicated then it needs to be. -exec will take the exit code of the command it runs and use it logically in find. So you can just do

find -name '*.php' -exec grep -iq "fincken" {} \; -exec grep -iq "TODO" {} \; -print

Which will get to the -print only if both -exec blocks return 0.