An Array of grep Results?

[Nathan Olberding]

I want to search all the files in a directory for a string and save the
results in an Array. So far, the best solution I can come up with is
using system("grep ... > resultsFile"), then opening resultsFile and
doing readlines(). There's a better way, isn't there?

 

[Jonathan Leighton]

I want to search all the files in a directory for a string and save the
results in an Array. So far, the best solution I can come up with is
using system("grep ... > resultsFile"), then opening resultsFile and
doing readlines(). There's a better way, isn't there?

Yep: Dir["/some/foo/directory/*"]

See the docs for Dir#glob

 

[Robert Klemme]

I want to search all the files in a directory for a string and save
the results in an Array. So far, the best solution I can come up with
is using system("grep ... > resultsFile"), then opening resultsFile
and doing readlines(). There's a better way, isn't there?

# untested
found = {}
Dir["/foo/*"].each {|f| found[f] = File.open(f) {|io|
io.grep(/your_string/)} }

This should give you a hash with file names as keys and match lines as
values.

Kind regards

robert