/usr/sbin/bak2db is in 389-ds-base 1.3.4.9-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | #!/bin/bash
. /usr/share/dirsrv/data/DSSharedLib
libpath_add "/usr/lib/x86_64-linux-gnu/dirsrv/"
libpath_add ""
libpath_add "/usr/lib/x86_64-linux-gnu"
libpath_add "/usr/lib/x86_64-linux-gnu"
export LD_LIBRARY_PATH
SHLIB_PATH=$LD_LIBRARY_PATH
export SHLIB_PATH
usage()
{
    echo "Usage: bak2db archivedir [-Z serverID] [-n backend] [-q] [-h]"
    echo "Options:"
    echo "        archivedir   - Directory where the archived backup is located"
    echo "        -n backend   - Backend database name.  Example: userRoot"
    echo "        -Z serverID  - Server instance identifier"
    echo "        -q           - Quiet mode - suppresses output"
    echo "        -h           - Display usage"  
}
if [ $# -lt 1 ] || [ $# -gt 7 ]
then
    usage
    exit 1
fi
case $1 in
    -*)
        usage
        exit 1
        ;;
    *)
        archivedir=$1
        shift
        ;;
esac
while getopts "hn:Z:qd:vi:a:SD:" flag
do
    case $flag in
        h) usage
           exit 0;;
        Z) servid=$OPTARG;; 
        n) args=$args" -n \"$OPTARG\"";;
        q) args=$args" -q";;
        d) args=$args" -d \"$OPTARG\"";;
        v) args=$args" -v";;
        D) args=$args" -D \"$OPTARG\"";;
        i) args=$args" -i \"$OPTARG\"";;
        a) archivedir=$OPTARG;;
        S) args=$args" -S";;
        ?) usage
           exit 1;;
    esac
done
initfile=$(get_init_file "/etc/default" $servid)
if [ $? -eq 1 ]
then
    usage
    echo "You must supply a valid server instance identifier.  Use -Z to specify instance name"
    echo "Available instances: $initfile"
    exit 1
fi
. $initfile
if [ 1 = `expr $archivedir : "\/"` ]
then
    archivedir=$archivedir
else
    # relative
    archivedir=`pwd`/$archivedir
fi
eval /usr/sbin/ns-slapd archive2db -D $CONFIG_DIR -a $archivedir $args
 |