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#! /usr/bin/awk -f

BEGIN {
    sep = sep ? sep : " "
    end = end ? end : ""
}

! /^\#/ && ! /^$/ {
    xs[$1]++
}

END {
    _sep = ""
    for (x in xs) {
        if (xs[x] > 1) {
            printf ">>> [WARNING] : '%s' was listed %d times.\n", x, xs[x] > "/dev/stderr"
        }
        printf("%s%s", _sep, x)
        _sep = sep
    }
    printf "%s", end
}
Commit	Line	Data
d928c03b SK	1	#! /usr/bin/awk -f
d928c03b SK	2
212821b8 SK	3	BEGIN {
	4	sep = sep ? sep : " "
	5	end = end ? end : ""
	6	}
	7
d928c03b SK	8	! /^\#/ && ! /^$/ {
	9	xs[$1]++
	10	}
0b43a166	11
d928c03b	12	END {
212821b8	13	_sep = ""
d928c03b	14	for (x in xs) {
9e4b0a7a SK	15	if (xs[x] > 1) {
	16	printf ">>> [WARNING] : '%s' was listed %d times.\n", x, xs[x] > "/dev/stderr"
	17	}
212821b8 SK	18	printf("%s%s", _sep, x)
212821b8 SK	19	_sep = sep
d928c03b	20	}
212821b8	21	printf "%s", end
d928c03b	22	}