Some progress - Githubissues

sleep 1
t app led red_front on
lu_util exec 'busybox --help > /tmp/fuse_d/busyboxhelp.txt'
sleep 1
t app led red_front off

It prints a file called busyboxhelp.txt in the sd:

BusyBox v1.19.3 (2013-07-02 18:31:52 PDT) multi-call binary.
Copyright (C) 1998-2011 Erik Andersen, Rob Landley, Denys Vlasenko
and others. Licensed under GPLv2.
See source distribution for full notice.

Usage: busybox [function] [arguments]...
   or: busybox --list[-full]
   or: function [arguments]...

    BusyBox is a multi-call binary that combines many common Unix
    utilities into a single executable.  Most people will create a
    link to busybox for each function they wish to use and BusyBox
    will act like whatever it was invoked as.

Currently defined functions:
    [, [[, acpid, add-shell, addgroup, adduser, adjtimex, arp, arping, ash,
    awk, base64, basename, beep, blkid, blockdev, bootchartd, 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, cttyhack, 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, ether-wake,
    expand, expr, fakeidentd, false, fbset, fbsplash, fdflush, fdformat,
    fdisk, fgconsole, fgrep, find, findfs, flock, fold, free, freeramdisk,
    fsck, fsck.minix, fsync, ftpd, ftpget, ftpput, fuser, getopt, getty,
    grep, groups, gunzip, gzip, halt, hd, hdparm, head, hexdump, hostid,
    hostname, httpd, hush, hwclock, id, ifconfig, ifdown, ifenslave,
    ifplugd, ifup, inetd, init, insmod, install, ionice, iostat, ip,
    ipaddr, ipcalc, ipcrm, ipcs, iplink, iproute, iprule, iptunnel,
    kbd_mode, kill, killall, killall5, klogd, last, less, linux32, linux64,
    linuxrc, ln, loadfont, loadkmap, logger, login, logname, logread,
    losetup, lpd, lpq, lpr, ls, lsattr, lsmod, lspci, lsusb, lzcat, lzma,
    lzop, lzopcat, makedevs, makemime, man, md5sum, mdev, mesg, microcom,
    mkdir, mkdosfs, mke2fs, mkfifo, mkfs.ext2, mkfs.minix, mkfs.vfat,
    mknod, mkpasswd, mkswap, mktemp, modinfo, modprobe, more, mount,
    mountpoint, mpstat, mt, mv, nameif, nbd-client, nc, netstat, nice,
    nmeter, nohup, nslookup, ntpd, od, openvt, passwd, patch, pgrep, pidof,
    ping, ping6, pipe_progress, pivot_root, pkill, pmap, popmaildir,
    poweroff, powertop, printenv, printf, ps, pscan, pstree, pwd, pwdx,
    raidautorun, rdate, rdev, readahead, readlink, readprofile, realpath,
    reboot, reformime, remove-shell, renice, reset, resize, rev, rm, rmdir,
    rmmod, route, rpm, rpm2cpio, rtcwake, run-parts, runlevel, runsv,
    runsvdir, rx, script, scriptreplay, sed, sendmail, seq, setarch,
    setconsole, setfont, setkeycodes, setlogcons, setserial, setsid,
    setuidgid, sh, sha1sum, sha256sum, sha512sum, showkey, slattach, sleep,
    smemcap, softlimit, sort, split, start-stop-daemon, stat, strings,
    stty, su, sulogin, sum, sv, svlogd, swapoff, swapon, switch_root, sync,
    sysctl, syslogd, tac, tail, tar, tcpsvd, tee, telnet, telnetd, test,
    tftp, tftpd, time, timeout, top, touch, tr, traceroute, traceroute6,
    true, tty, ttysize, tunctl, ubiattach, ubidetach, ubimkvol, ubirmvol,
    ubirsvol, ubiupdatevol, udhcpc, udhcpd, udpsvd, umount, uname,
    unexpand, uniq, unix2dos, unlzma, unlzop, unxz, unzip, uptime, users,
    usleep, uudecode, uuencode, vconfig, vi, vlock, volname, wall, watch,
    watchdog, wc, wget, which, who, whoami, whois, xargs, xz, xzcat, yes,
    zcat, zcip

shayanb / GoPro-Black-3Plus-Firmware-Analysis

Some progress #2