- biff - Mail notification
- comstat - Incoming mail daemon
- Mail.rc - Configuration file for mail
- wall - Send message to all users
- write - Send messages to specific user
- mesg - allow/disallow write or talk
- ate - vt100 terminal emulator
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- cu - Connect to unix system
- uucp - Copy files to unix system
- uux - Execute a command on another unix system
- sendmail - Deamon for sending email
- aliases - Alternate email addresses
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ate
Used to dial a modem and connect to another computer. Uses vt100 emulation. Allows for transfering of files.
Default files:
- /usr/lib/dir - directory of phone numbers
- /usr/lib/ate.def - contains default parameters. An ate.def Is copied to your current path when ate is executed.
biff
Enable/disables mail notification during current display session. Works in conjunction
with the comstat daemon.
| Examples |
What it does |
| biff y |
Enables mail notification |
| biff n |
Disables mail notification |
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comstat
Daemon that will notify users of incoming mail. The first seven lines
or 560 characters of the message is displayed. Make
sure the /etc/inetd.conf file has the comsat entry uncommented so that the inetd daemon can invoke it.
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Mail.rc
The file /usr/share/lib/Mail.rc contains default settings when using standard mail command.
Useful settings...
- setaskcc
- autoprint
- dot
- set crt=20
- set PAGER=pg
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cu
cu (connect unix) is a terminal emulator that connects to a local
or remote system. If connecting to another UNIX system, you can also perform file transfers.
| Examples |
What it does |
| cu -d ibm |
-d option is used to run in debug mode. The debug option is useful
to determine if your able to talk to the modem, able to dial
out the modem or to connect to the remote machine. This will
try to contact the node named ibm. The ibm entry is found
in the /usr/lib/uucp/Systems file. Also the
file named /usr/lib/uucp/Devices will specify which port that ibm will use to call-out. |
| take |
Takes file from remote host (called to) to local host (called from) |
| put |
Takes files from local host (called from) to remote host (called to) |
| ~%b |
Generates a BREAK signal |
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mesg
Allows/disallows 'write' or 'talk' session to display terminal
| Examples |
What it does |
| mesg y |
Allows 'write' or 'talk' |
| mesg n |
Doesn't allows 'write' or 'talk' |
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uucp
Copies file(s) from one unix system to another.
Example: uucp -x9 /u/roger/daily.log rs520!/u/log
Copies the daily.log file found on the local machine to the
/u/log directory on the remote machine named rs520.
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uux
Executes an command on another system.
Example: uux -z rs520!lp /u/roger/memo.log
The local file named /u/roger/memo.log will be printed on
the remote node named rs520. The -z option will notify the user if the command completed successfully.
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wall
Writes a message to all the users that are currently logged in. This
command is typically used by the system administrator to notify
users that the system will be coming down shortly for maintenance or system updates.
Example: wall "PLEASE LOG OFF!!! SYSTEM GOING DOWN FOR MAINTENANCE."
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write
Allows two logged-in users to have an interactive chat session with each
other. Consult the mesg command to
disable the 'talk' or 'write' command from writing to your terminal.
Must have '/etc/writesrv' daemon running
if you wish to have the ability to write to other users.
| Examples |
What it does |
| write roger |
Start a conversation with the user roger |
| write - tty22 |
Start a conversation with the person logged in on terminal 22 |
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sendmail
The daemon that is is used to control the sending of Email.
| Examples |
What it does |
| sendmail -bp |
Displays any Email that is in the send queue. |
| refresh -s sendmail |
Will cause the current running daemon to use the current configuration stored in /etc/sendmail.cf |
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aliases
The file etc/aliases contains alternate email addresses to forward email to another
user name. After changes are made run the
command /usr/sbin/sendmail -bi
to recompile the aliases file.
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