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Initial revision

    1: #!/usr/bin/perl
    2: # This helper script makes it easy to use a passwd or group file to map
    3: # values in a LOCAL transfer.  For instance, if you mount a backup that
    4: # does not have the same passwd setup as the local machine, you can do
    5: # a copy TO the backup area as follows and get the differing ID values
    6: # mapped just like a remote transfer TO the backed-up machine would do:
    7: #
    8: # rsync -av --usermap=`mapto /mnt/backup/etc/passwd` \
    9: #           --groupmap=`mapto /mnt/backup/etc/group` \
   10: #           /some/src/ /mnt/backup/some/dest/
   11: 
   12: while (<>) {
   13:     push @_, "$1:$2" if /^(\w+):[^:]+:(\d+)/;
   14: }
   15: print join(',', @_), "\n";