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OP's problem was different. Their grep didn't support the -o option.

muru
– muru

2015-01-28 18:43:25 +00:00
Commented Jan 28, 2015 at 18:43
ah, ok. Still very new to this and wondered why if he was so close to an answer everyone too him away from grep.

tpettinato
– tpettinato

2015-01-28 18:45:23 +00:00
Commented Jan 28, 2015 at 18:45
That's fine, I suppose. The comments below the question are informative. terdon points out this, and other mistakes in OP's approach (notably, even this does not do what OP wants, which is counting the number of tabs per line).

muru
– muru

2015-01-28 18:50:53 +00:00
Commented Jan 28, 2015 at 18:50

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