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dizhn 8 hours ago  [ - ]

I've always done 'sort | uniq'. Never bothered to check for the the unique flag to sort. Although 'uniq -c' is quite nice to have.

       -c, --count
              prefix lines by the number of occurrences
adolph 8 hours ago  [ - ]

Yeah, to see the packages with multiple versions:

  grep 'name = ' ms-litebox-Cargo.lock | sort | uniq -c | grep -v '1 name' | sort -n
Package windows-sys has the highest number of versions included, 3: 0.59.0, 0.60.2, and 0.61.2.

Edit: Also, beware of the unsorted uniq count:

  cat <<EOF | uniq -c
  > a
  > a
  > b
  > a
  > a
  > EOF
   2 a
   1 b
   2 a
dundarious 8 hours ago  [ - ]

grep -v '1 name' excludes 11, 21, etc., but I take your point.