1#compdef comm
2
3local -a args
4
5args=(
6  '-1[suppress lines unique to FILE1]'
7  '-2[suppress lines unique to FILE2]'
8  '-3[suppress lines that appear in both files]'
9  '1:file1 to compare:_files'
10  '2:file2 to compare:_files'
11)
12
13if _pick_variant gnu=GNU unix --version; then
14  args+=(
15    '(- : *)--version[display version information]'
16    '(- : *)--help[display help information]'
17  )
18fi
19
20_arguments -s $args
21