sort−uniq−count, sort−uniq−count−rank − print line frequencies
sort−uniq−count[−rank] [[−]b] [[−]f] [[−]i] [[−]n] [[−]r] [[−]s]
sort−uniq−count and sort−uniq−count−rank each read a text file on standard input, sort it according to any specified flags (-f by default), and report to standard output how often each input line occurs. Each output line consists of a count followed by a tab and an input line.
sort−uniq−count produces its output in the user’s choice of sort order. sort−uniq−count−rank sorts its output primarily from highest to lowest count, with the user’s sort order as a tiebreaker.
[−]b |
Ignore leading blanks. |
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[−]f |
Ignore capitalization. |
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[−]i |
Consider only printable characters. |
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[−]n |
Compare according to numerical value. |
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[−]r |
Reverse the result of comparisons. |
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[−]s |
Stabilize sort. |