No package installer on linux?

Question

linux

Recently I got a cool industrial router (upd. NB2800), strangled its signal so as not to die from radiation sickness, put it at home - it works like a clock.

Today I wanted to put a couple of packages on it, but my authority here is all over...
I can't figure out what kind of distribution it is, if it has any package installers, etc.
Poke your nose where you need to look and if I can do it all if I'm the last one in linux

$ uname -a
Linux NB2800 3.18.16 #1 SMP Fri May 11 16:18:28 CEST 2018 armv7l GNU/Linux

tab tab

adduser             devmem              lldpctl             pptpctrl            test
alias-down          df                  lldpd               pptpd               tftp
alias-up            dhcpevent           ln                  printf              time
arena               diff                lock                ps                  tinycap
arp                 dirname             logger              pwd                 tinymix
arp-down            dmesg               login               qosd                tinypcminfo
arp-up              dnsmasq             ls                  quagga.init         tinyplay
arpevent            dos2unix            lsmod               rdate               top
arping              dropbear            lxc-attach          readlink            touch
ascii-xfr           dropbearconvert     lxc-config          readprofile         tr
ash                 dropbearkey         lxc-console         reboot              traceroute
at                  du                  lxc-info            received-sms        true
atd                 e2fsck              lxc-monitor         reset               tty-bridge
atq                 echo                lxc-start           reset-monitor       tune2fs
atrm                egrep               lxc-stop            rfkill              ubx-cmd
autorun             env                 md5enc              rm                  ubxd
awk                 ether-wake          md5sum              rmdir               udevadm
basename            ethtool             mgetty              rmmod               udevd
bc                  event-manager       minicom             route               udevtrigger
bcm                 expr                mkdir               rsync               udhcpc
bcrelay             factory-reset       mkdosfs             scp                 ulockmgr_server
bgpd                false               mke2fs              sdkScripts/         umount
blkid               fgrep               mkfifo              sdkhost             uname
bofh                find                mkfs.ext2           sed                 uniq
brctl               findfs              mkfs.ext3           send-email          unxz
bridge-stp          free                mkfs.ext4           send-email-att      unzip
bunzip2             fsck.ext2           mkfs.vfat           send-email-queue    update-config
busybox             fsck.ext3           mknod               send-sms            update-firmware
bzip2               fsck.ext4           mkpasswd            send-trap           update-license
candump             fstrim              mkswap              sendmail            update-software
cansend             fsync               mktemp              seq                 update-sshkeys
cansniffer          fuser               mmc                 ser2net             uptime
cat                 fusermount          mobile-node         setkey              uradius
cert-scripts/       getopt              modinfo             sfdisk              usb-devices
cfconvert           getty               modprobe            sh                  usb-eth-event
cgclassify          gpsd                monitor             sha256sum           usb-serial-event
cgclear             grep                mount               sleep               usb-storage-event
cgcreate            gunzip              mount.fuse          smcroute            usftp
cgdelete            gzip                mroute              smsd                usleep
cgexec              halt                mstpctl             snmpc               uuencode
cgget               head                mstpd               snmpd               vconfig
cgset               hexdump             mv                  snmpget             vi
cgsnapshot          home-agent          nameserver-changed  snmpset             voice-cmd
chat                hostapd             nbinfo              snmptrap            voiced
chgrp               hostid              nblog               snmpusm             vpn-up
chmod               hotplug-call        nbtestcase          sort                vrrpd
chown               hotplug2            nc                  speed-test          vrrpd-changed
chronyc             hwclock             netmsg              sscep               vsftpd
chronyd             id                  netstat             ssh                 wan-down
chroot              ifconfig            nice                ssmtp               wan-up
clear               ifrename            nmevent             start-stop-daemon   watch
cli                 igmpproxy           nohup               strace              watchdog
cli-debug           inetd               nslookup            strings             wc
cli-get             init                ntpd-hotplug        stty                wget
cli-interactive     insmod              ntpdate             su                  whack
cli-reboot          ip                  old                 surveyor            which
cli-reset           ipcalc              openssl             swapoff             who
cli-restart         iperf               openvpn             swapon              whoami
cli-scan            ipsec               opkg-key            switch-config       wpa_cli
cli-send            iptables            ospfd               switch-software     wpa_supplicant
cli-set             iptables-restore    parrotlog           switch_root         wwan-cmd
cli-status          iptables-save       passthru-changed    swupdate            wwan-lock-voice
cli-update          ipupdate            passwd              sync                wwan-manager
cmp                 iw                  pdb                 syscookie           wwan-reset
configd             iwconfig            pgrep               sysctl              wwan-scan
configd_if          iwlist              php-cgi             syslogd             wwan-unlock-voice
conntrack           iwpriv              php-fcgi            system-poweroff     wwanmd
cp                  kill                pidof               system-reboot       www-scripts/
crond               killall             ping                systime-update      xargs
crontab             killall5            ping6               tail                xtables-multi
cryptpw             klogd               pivot_root          tail-lighttpd       xz
curl                lan-down            pki                 tail-log            yes
cut                 lan-up              pkill               tail-scripts        zcat
darkstat            ldconfig            poweroff            tar                 zebra
date                ldd                 pppd                tc                  zip
dbclient            led-manager         pppoe               tcpdump             zipgrep
dd                  less                pppoe-connect       tcpser
ddns-update         lighttpd            pppoe-start         tee
deluser             link-manager        pppoe-stop          telnet
depmod              lldpcli             pptp                telnetd

Answer 1

In vain "strangled his signal", it also stimulates the brain and helps to google and think better.

Answer 2

installer may or may not be available. why is it on the router?
the router should be able to do network work well and FSE. therefore, everything you need is already in the firmware, and everything superfluous is not included (the more superfluous the more problems).
the router is usually updated with a flashing - a package with an installer is superfluous.
either compile and upload it yourself, or flash a thread like openvrt.

Answer 3

The router (which usually has a limited amount of media, as a flash drive) usually lacks all the development and modification tools, and the packages for it are collected purely by the developer company. By the way, this is the reason for the appearance of optware / entware for synology, where also by default only those packages that synology itself offers.
If the router is industrial, then there should be voluminous documentation for it, in which it is usually written how the packages are updated. Only I'm afraid that the packages should be collected under this percentage.
By the way, it seems to me that you underestimate your level of Linux proficiency :) A person who knows about the package manager and aircrack (and why it is needed) is no longer such a noob :)