regex - Mac OS/X, Grep and Whitespace issues -

i trying use grep on text file in os/x test. known contain following text, including whitespace characters.

(10) business day 

my regex search pattern follows:

[\(][0-9]{1,3}[\)] business day 

however, doesn't work:

$ grep -eoi '[\(][0-9]{1,3}[\)] business day' *.txt 

if remove "day" above, this:

$ grep -eoi '[\(][0-9]{1,3}[\)] business' *.txt (10) business 

which expected output egrep -oi or grep -eoi above line.

neither this:

$ grep -eoi '[\(][0-9]{1,3}[\)]\sbusiness\sday' *.txt 

nor this:

$ grep -eoi '[\(][0-9]{1,3}[\)] business\sday' *.txt 

nor this:

$ grep -eoi '[\(][0-9]{1,3}[\)][[:space:]]business[[:space:]]day' *.txt 

nor this:

$ grep -eoi '[\(][0-9]{1,3}[\)] business[[:space:]]day' *.txt 

yield desired result, is:

(10) business day 

instead, yeild this:

$ 

(nothing)

i have wasted hours pounding head on desk hours on this. grep not rocket surgery, missing here?????

solved it. need thank vielmetti , suku pointing me in right direction, though.

the problem multiple-fold.

first, problem in relation encoding of text file when saved word document on mac operating system. need save ms-dos format, , not insert line breaks.

once got resolved, command started finding desired text, and, once had figured out macscript approach put grep command vba properly, fell place.

so, review - when saving ms-word document on mac text file, make sure use ms-dos formatting without line feeds.

here's vba command save it:

        document.saveas filename:=filepath & docname & ".txt", _                         fileformat:=wdformattext, _                         lockcomments:=false, _                         password:="", _                         addtorecentfiles:=false, _                         writepassword:="", _                         readonlyrecommended:=false, _                         embedtruetypefonts:=false, _                         savenativepictureformat:=false, _                         saveformsdata:=false, _                         saveasaoceletter:=false, _                         encoding:=437, _                         insertlinebreaks:=false, _                             allowsubstitutions:=false, _                         lineending:=wdcronly          

the key settings insertlinebreaks := false and, potentially, lineending:=wdcronly.