SDF Shell and Network Utilities

Directory and File Utilities found in (/bin /usr/bin & /usr/pkg/bin)
`editors`	Prints out a list of file editors.
`cd`	Change to a new directory.
`pwd`	Show the current directory you are in.
`ls -la`	List the files in the current directory.
`cat`	Concatenate a file (print its contents).
`more`	List a file's contents and pause at a screenful.
`cp`	Copy a file.
`mv`	Move or rename a file.
`rm`	Remove a file (try the delete/undelete/expunge suite).
`mkdir`	Make a directory.
`rmdir`	Remove a directory.
`chmod`	Change the permissions of a file.
`kermit`	Run the KERMIT program for file transfers, et cetera.
`sz,sx,sb`	Send Zmodem, Send Xmodem and Send Ymodem.
`rz,rx,rb`	Receive Zmodem, Receive Xmodem and Receive Ymodem.

Internetworked Electronic Mail, S D F - 1 Public Access UNIX System
`elm`	A nice, configurable mail reading/sending program.
`mm`	TOPS-20 Mail Manager.
`mutt`	based on ELM, but much smaller.
`pine`	A nice, configurable mail reading/sending program.
`mailx`	Line based mail reader.
`bboard`	SDF Public bulletin board.
`vacation`	While your away, mail can respond for you.
`nospam`	A simple mail filter that keeps spam away.

USENET Newsgroups
`readnews`	A very simple news reader.
`rn`	Read News. An enhanced news reader.
`trn`	Read News by threads (recommended).
`postnews`	A simple news posting program (great!).
`Pnews`	A posting program with more options.
`nn`	Efficient net news interface.
`tin`	Iain Lea's ELM like newsreader.

User and Process Information
`who`	Who is On?
`w`	Who and what they Do?
`finger`	Who is who?
`users`	A horizontal list of who is logged in.
`ps`	Process Status.
`last`	The user log for the day.
`chpass`	Change your fullname and/or login shell.
`sentry`	Monitors login/logout account usage.
`uinfo`	Display historical info on a user's account.
`notify`	Important notices checked at login time.

Tutorials and Interesting Commands
`faq`	Answers to Frequently Asked Questions about SDF.
`logout`	Logs you out of the UNIX system.
`ruptime`	Displays current uptime stats for all SDF systems.
`downtime`	Displays logged downtime, reasons and future maintenance.
`commode`	COM MODE communication forum.
`phone`	User2User online communication programme.
`send`	Online Communication tool. Type "send -?" for options.
`online`	Tells you how long a user has been online for the day.
`oneliner`	SDF's infamous, user contributed, 'one liners'.
`disk`	Lists disk usage for a user.
`vilearn`	Interactive tutorial for using the "vi" visual editor.
`mesg`	Sets messages on or off for all or users in your user group.
`games`	Prints a list of online games and playing tips.
`ttylock`	A simple 'lock' for those who wish to secure a public TTY.
`pledge`	Make a pledge of support to the SDF Public Access UNIX System.
`maxusers`	Print the maximum number of concurrent users.

ARPA Services (Denoted by * are restricted to "ARPA" group members only.)
`*telnet`	Make a TTY connection to a remote host.
`*ssh`	Make a secured TTY connection to a remote host.
`*rlogin`	Remote Login to another host.
`finger`	Who is logged in.
`*ftp`	Transfer files between systems (use TENEX mode for PDP-10s)
`lynx`	A textual interface to html.
`links`	A textual interface to html with frames support.
`whois`	Search SRI-NIC.ARPA database records.
`*irc`	Internet Relay Chat - enter at your own RISK %-)
`freeirc`	Available to 'users' on Sundays.
`talk`	BSD Talk programme .. communicate with other users interactively.
`ytalk`	Allows you to talk with multiple users in one talk session.
`micq`	Matt Smith's ICQ client for UNIX - Creates .micqrc for conf
`ysm`	You Sick Me - an icq compatible client.
`naim`	Not AOL instant messager - An AOL instant messenger client.
`tac`	An AOL instant messenger client.
`*snarf`	Snarf files via FTP or HTTP really fast.
`*curl`	cat URL.
`udns`	Set your dynamic IP address for your mdns.org domain.

Homepage, VHOST and MetaARPA Utilities
`url`	Look up an SDF user's URL.
`dues`	Display you current membership dues status.
`mdns`	Update your dynamic DNS.
`mkcron`	Manage your cronjobs.
`mkgopher`	This command sets up your GOPHERSPACE directory and allows you create titles and descriptions for your site.
`mkhomepg`	This command sets up your initial homepage directory $HOME/html with proper links. You can then upload files via FTP or Z/X/Y/Modem mkhomepg can also be used to create your own custom URL and be used to set proper file permissions for cgis and html.
`mkvhost`	If you are in the ARPA group, you can run this to setup your own DNS record and include your host as a 'virtual host' on SDF.
`mkvlist`	Manage your mailing lists.
`mkvpm`	If you are in the ARPA group and a VHOST member you can use this command to setup, modify or delete virtual pop3 mailboxes associated with your domain. This can also be used to toggle aliases and set your SMTP AUTH shared secret.
`vpmstat`	Lists all VPM mailboxes (active and inactive), their size and the last time they were written to.
`vpmclear`	Allows you to clear specific VPM mailbox files.
`rsync`	MetaARPA can use this utility to as a faster, flexible replacement for rcp.
`setvmail`	MetaARPA members can use this utility to toggle any of the 36 domains available as email addresses.
`webquota`	Displays your current webquota used/available.

UNIX command summary at sdf.org
`cd {dir}`	Change Directory.
`pwd`	print working (current) directory.
`ls`	LiSt directory (try ls -la)
`cat {file}`	conCATenate (view) a file.
`mkdir {name}`	Create a directory.
`rm {file}`	Remove a file or directory.
`mv {file)`	Move a file or directory.
`chmod perm {file}`	Set permission bits for a file or directory.
`edit {file}`	Edit a file in your directory.
`ps`	Process Status (try ps -aux)
`passwd`	Change your password.
`disk`	Show current disk usage.
`uptime`	Show system status.
`df`	Print system storage.
`freeirc`	IRC access is free on Sundays.
`profiles`	Join the ASCII social network.
`dict {word}`	Query the online dictionary.
`cal`	Calendar (try 'cal 1752')
`finger {user}`	Show info about a user (try who or w)
`chfn`	Change your full name.
`chsh`	Change your shell.
`ping {host}`	Test network connectivity to a host.
`traceroute {host}`	View the route to a remote host.
`man {cmd}`	Read a manual page for a command.
`dig / host`	DNS utilities.
`geoip`	Country lookup on an IP.
`expire`	Calculate your account expiration.
`domains`	List domains available for use on SDF.
`mkhomepg`	Manage your own webpage space.
`mkgopher`	Manage your own gopherspace.
`upload`	Upload a file using ZMODEM (works w/ TeraTERM)
`com`	Multiuser online chat.
`msg {user}`	Send a message to another user online.
`bboard`	Bulletin board.
`faq`	Frequently asked questions.
`mail`	Read/send email.
`lynx {url}`	Browse webpages.
`links {url}`	Browse webpages (w/ frames support)
`gopher {url}`	Browse gopherspace.
`talk {user}`	Talk to another user.
`url {user}`	Look up a user's URL.
`ysm`	Chat on the ICQ network.
`pkg_info`	List ported/installed software packages.
`whois {domain}`	Query the INTERNIC WHOIS database.
`delme`	Remove your account now.
`logout`	Logoff.