UNIX for Beginners Questions & Answers

sample    1    173
sample    269    530
sample    687    733
sample    1699 1779

sample 174..265, 531..686, 734..1698

awk '{print $1" "$3+1".."$2-1;}' input

sample 174..0
sample 531..268
sample 734..686
sample 1780..1698

awk -F"\t" '
NR==1 {printf $1 " " ; l=$NF + 1;}
NR>2 {printf ", "}
NR>1 {printf l ".." $2 - 1; l=$NF + 1}
END {print ""}
' infile

f=0 ; while read -r one two three; do
  ((!$f)) && { printf "%s" "${one} $(($three+1)).."; f=1; continue;}
  printf "%s, %s.." "$(($two-1))" "$(($three+1))"
done < datafile; print

awk -F'\t' '
        {
                ++R[$1]
                A2[$1 FS R[$1]] = $2
                A3[$1 FS R[$1]] = $3
        }
        END {
                for ( k in R )
                {
                        i = 1
                        printf "%s\t", k
                        while ( i < R[k] )
                        {
                                printf "%d..%d ", A3[k FS i]+1, A2[k FS (i+1)]-1
                                ++i
                        }
                        printf "\n"
                }
        }
' file