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APPENDIX A: Linux Commands and Source Code
The console server platform is a dedicated Linux computer optimized to provide monitoring and secure access to serial and
network consoles of critical server systems and their supporting power and networking infrastructure.
Tripp Lite console servers are built on the uCLinux distribution as developed by the uCLinux project. This is GPL code, whose
source can be found at http://cvs.uclinux.org.
Some uCLinux commands have config files that can be altered (e.g., portmanager, inetd, init, sshd).
Other commands you can run and configure (e.g., loopback, bash (shell), ftp, hwclock, iproute, iptables, netcat, ifconfig, mii-
tool, netstat, route, ping, portmap, pppd, routed, setserial, smtpclient, stty, stunel, tcpdump, tftp, tip, traceroute).
Below are most of the standard uCLinux and Busybox commands (and some custom Tripp Lite commands) that are in the
default build tree. The Administrator can use these to configure the console server, and monitor and manage attached serial
console and host devices:
addgroup * Add a group or add a user to a group
adduser * Add a user
agetty Alternative Linux getty
arp Manipulate the system ARP cache
arping Send ARP requests/replies
bash GNU Bourne-Again Shell
busybox Swiss army knife of embedded Linux commands
cat * Concatenate FILE(s) and print them to stdout
chat Useful for interacting with a modem connected to stdin/stdout
chgrp * Change file access permissions
chmod * Change file access permissions
chown * Change file owner and group
config Tripp Lite tool to manipulate and query the system configuration from the command line
cp * Copy files and directories
date * Print or set the system date and time
dd * Convert and copy a file
deluser * Delete USER from the system
df * Report file system disk space usage
dhcpd Dynamic Host Configuration Protocol server
discard Network utility that monitors the discard port
dmesg * Print or control the kernel ring buffer
echo * Print the specified ARGs to stdout
erase Tool for erasing MTD partitions
eraseall Tool for erasing entire MTD partitions
false * Do nothing, unsuccessful
find Search for files
flashw Write data to individual flash devices
flatfsd Daemon to save RAM file systems back to FLASH
ftp Internet file transfer program
gen-keys SSH key generation program
getopt * Parses command options
gettyd Getty daemon
grep * Print lines matching a pattern
gunzip * Compress or expand files
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