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Annotation of 41BSD/cmd/diff3/diff3.sh, revision 1.1.1.1

1.1       root        1: e=
                      2: case $1 in
                      3: -*)
                      4:        e=$1
                      5:        shift;;
                      6: esac
                      7: if test $# = 3 -a -f $1 -a -f $2 -a -f $3
                      8: then
                      9:        :
                     10: else
                     11:        echo usage: diff3 file1 file2 file3 1>&2
                     12:        exit
                     13: fi
                     14: trap "rm -f /tmp/d3[ab]$$" 0 1 2 13 15
                     15: diff $1 $3 >/tmp/d3a$$
                     16: diff $2 $3 >/tmp/d3b$$
                     17: /usr/lib/diff3 $e /tmp/d3[ab]$$ $1 $2 $3

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