bash - How to find unique words from file linux -

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i have big file, teh lines text numbers etc. [man-(some numers)] lot of man-somenumbers repeat in few lines, want count unique mans -words. cant use unique file , because text before man words different in each line. how can count unique man-somenumbers words in file ?

if understand want correctly, then

grep -oe 'man-[0-9]+' filename | sort | uniq -c

should trick. works follows: first

grep -oe 'man-[0-9]+' filename

isolates words file match man-[0-9]+ regular expression. list piped through sort sorted list uniq requires, , sorted list piped through uniq -c count how each unique man- word appears.


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