Ubuntu – Find all files with specific extensions that contains a string

You can use the -path option to find and combine it with the -not operator.

find . ! -path "*/test/*" -type f -name "*.js" ! -name "*-min-*" ! -name "*console*"

Please note two things

• -path must come as the first argument
• the pattern matches the whole filename, so -path test will not match anything, ever

By the way, I'm not sure why you are using parentheses, it doesn't make a difference. It is only used for precedence, for constructs such as ! \( -name '*bla*' -name '*foo*' \) (that is, do not find things that have both bla and foo).

A further refinement: no need to use the bash loop, you can simply do

find . ... -exec cat {} \; -exec echo \;

where ... are the other arguments to find.

TL;DR

Add -iname "*.log" after / to your find command. Refer to man page for more info

A more detailed answer

The task at hand is the following:

1. List files that match pattern *.log
2. Execute grep per each file to find whether or not it contains a specific string.
3. List the filename that has a match on the stdout

The example of how that can be accomplished can be seen bellow:

$ find /var/log -iname "*.log" -exec grep -l 'wlan' {} \+                      

Essentially there's 3 things at play:

• find does the job of finding files AND calling grep per list of filenames in the -exec ...{} \+ structure, where {} will be substituted with all the filenames found.
• -iname "*.log" can provide case-insensetive matching of the filenames
• -exec . . .{} \+ calls the low-level execve function that will spawn grep -l with the list of all the files found in front of it ( in the place of {} ).
• The \+ is the option that specifies for execve to pack as any files as possible in front of grep (the limit is set by ARG_MAX variable, is specific to exec, and for Ubuntu is at 2097152 as can be shown by getconf ARG_MAX command ). Once the limit is reached, exec will repeat the call to grep with more files packed as arguments. The \ is necessary to ensure + is interpreted as argument to find and not as another shell command.
• the -l option or grep shows files with matched string. -L would match files without the string.