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Annotation of 40BSD/cmd/vipw.sh, revision 1.1.1.1

1.1       root        1: cp /dev/null /etc/vipw.lock
                      2: chmod 0 /etc/vipw.lock
                      3: ln /etc/vipw.lock /etc/ptmp > /dev/null 2>& 1
                      4: case $? in
                      5: 0)
                      6:        trap '' 1 2 3 15
                      7:        vi /etc/passwd
                      8:        rm /etc/ptmp
                      9:        ;;
                     10: *)
                     11:        echo Temporary file busy, try again later.
                     12:        ;;
                     13: esac

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