busy-install.sh

#!/usr/bin/env sh
for app in acpid addgroup adduser adjtimex ar arp arping ash awk basename beep blkid brctl bunzip2 bzcat bzip2 cal cat catv chat chattr chgrp chmod chown chpasswd chpst chroot chrt chvt cksum clear cmp comm cp cpio crond crontab cryptpw cut date dc dd deallocvt delgroup deluser depmod devmem df dhcprelay diff dirname dmesg dnsd dnsdomainname dos2unix du dumpkmap dumpleases echo ed egrep eject env envdir envuidgid expand expr fakeidentd false fbset fbsplash fdflush fdformat fdisk fgrep find findfs flash_lock flash_unlock fold free freeramdisk fsck fsck.minix fsync ftpd ftpget ftpput fuser getopt getty grep gunzip gzip hd hdparm head hexdump hostid hostname httpd hush hwclock id ifconfig ifdown ifenslave ifplugd ifup inetd init inotifyd insmod install ionice ip ipaddr ipcalc ipcrm ipcs iplink iproute iprule iptunnel kbd_mode kill killall killall5 klogd last length less linux32 linux64 linuxrc ln loadfont loadkmap logger login logname logread losetup lpd lpq lpr ls lsattr lsmod lzmacat lzop lzopcat makemime man md5sum mdev mesg microcom mkdir mkdosfs mkfifo mkfs.minix mkfs.vfat mknod mkpasswd mkswap mktemp modprobe more mount mountpoint mt mv nameif nc netstat nice nmeter nohup nslookup od openvt passwd patch pgrep pidof ping ping6 pipe_progress pivot_root pkill popmaildir printenv printf ps pscan pwd raidautorun rdate rdev readlink readprofile realpath reformime renice reset resize rmdir rmmod route rpm rpm2cpio rtcwake run-parts runlevel runsv runsvdir rx script scriptreplay sed sendmail seq setarch setconsole setfont setkeycodes setlogcons setsid setuidgid sh sha1sum sha256sum sha512sum showkey slattach sleep softlimit sort split start-stop-daemon stat strings stty su sulogin sum sv svlogd swapoff swapon switch_root sync sysctl syslogd tac tail taskset tcpsvd tee telnet telnetd test tftp tftpd "time" timeout top touch tr traceroute true tty ttysize udhcpc udhcpd udpsvd umount uname uncompress unexpand uniq unix2dos unlzma unlzop unzip uptime usleep uudecode uuencode vconfig vi vlock volname watch watchdog wc wget which who whoami xargs yes zcat zcip
do
    if [ -f /bin/$app ]
    then
        echo "Removing /bin/$app"
        rm -f /bin/$app
    fi
    if [ -f /sbin/$app ]
    then
        echo "Removing /sbin/$app"
        rm -f /sbin/$app
    fi
    if [ -f /usr/sbin/$app ]
    then
        echo "Removing /usr/sbin/$app"
        rm -f /usr/sbin/$app
    fi
    if [ -f /usr/bin/$app ]
    then
        echo "Removing /usr/bin/$app"
        rm -f /usr/bin/$app
    fi
done
rm /bin/rm
busybox --install /bin