awk '
BEGIN {
        FULL="'$1'"
        FS=":";
        FMT="%-16s %-20s %-28s %20s %16s\n";
        print "User Summary for ""'$HOSTNAME'\n";
        "df -TB 1 | sed -n '"'2 p'"' | awk '"'{ print \$5 }'"'" |getline DISKTOTAL;
        printf(FMT , "NAME", "LAST LOGIN", "HOME", "DISK USAGE", "SHELL");
        printf(FMT , "===========", "================", "========================", "===================", $
}{
if ($NF != "/sbin/nologin" || FULL == "-a") {
        if (!$2 == "")
                NOPASS = NOPASS $1;
                NPCNT += NPCNT;
        DISKUSE == 0;
        "du -b " $6 " | sed -n '"'\$p'"' | awk '"'{ print \$1 }'"'" |getline DISKUSE;
        if (DISKUSE != "0") {
                TOTALUSE += DISKUSE;
                DISK = ((DISKUSE / DISKTOTAL) * 100);
                if (DISK < .01)
                        DISK = .01;
                DISK = sprintf(" (%.2f\%)", DISK);
                DISKUSE = int(DISKUSE / 1024) "kb";
        } else {
                DISKUSE = "--      ";
                DISK = "";
        }
        "last -n 1 " $1 " | sed -n '"'1 p'"' | awk '"'{ print \$4,\$5,\$6,\$7 }'"'" |getline NLAST;
        if (index(NLAST, ":") == 0)
                NLAST="       --"
        printf(FMT, $1, NLAST, $6,DISKUSE DISK, $7);
        CNT++;
        }
}
END {
        printf("\n%s Displayed Users are using %sMB / %sMB disk space\n", CNT, int((TOTALUSE / 1024)
/ 1024$
        printf("There are %d Users without passwords", NPCNT);
        if (NPCNT > 0)
                printf(":\n %s\n", NOPASS);
}' /etc/passwd 2>/dev/null;