Find strings containing English words in a text file

Question

Here's a sample input:

PAMA
Pamc
PaML
Panel00
PanelBrightnessLimits
PanelBrightnessParamsX
PanelPWMDutyRange
PanelPWMFrequency

I want to get:

Panel00
PanelBrightnessLimits
PanelBrightnessParamsX
PanelPWMDutyRange
PanelPWMFrequency

I.e. excluding very simple words like "a", "the", "it", "i", "ok", etc, so, let's say only English words with at least three letters in them.

`Panel`, `Bright[ness]`, `Limit[s]` are all English words. I've not mentioned or implied anywhere that there are spaces or any other symbols between them. Some strings contain spaces between words. — Artem S. Tashkinov, Jan 19 '23 at 23:26
Do you want to find the *longest* English words though? `Pan` and `rightness` are also English words of at least three letters for example — steeldriver, Jan 19 '23 at 23:33
[Look for English word in a file via terminal](https://unix.stackexchange.com/q/49641)? — don_crissti, Jan 19 '23 at 23:52

score 0 · Answer 1 · answered Jan 19 '23 at 23:31

0

Assuming you meant "with at least 4 words", you can try this grep

$ grep -Ev '^[[:alpha:]]{,4}$' input_file
Panel00
PanelBrightnessLimits
PanelBrightnessParamsX
PanelPWMDutyRange
PanelPWMFrequency

answered Jan 19 '23 at 23:31

sseLtaH

I meant strings containing any English words, not only those shown in the example. – Artem S. Tashkinov Jan 20 '23 at 07:24

1 Answers1