Unix Support
University IT Services Unix Host Systems
Accessing Unix hosts and your files
Use a secure SSH program (SSH Secure Shell for Windows or Macintosh SSH or SSH in a GACL) to log into comp.uark.edu or cavern.uark.edu.
You have other options for transferring files to your Unix account; for more information, see our File Transfer page.
When you have telnetted to your Unix account, you can use Pilot to view and manage your files.
Use Pico or VI to edit text files on your comp.uark.edu or cavern.uark.edu Unix account.
See our page on Shells on the comp.uark.edu Server for information regarding changing the shell on your account.
For questions regarding printing, see our page on Printing from a UA Unix Server.
Quotas
To check your quota and usage on a Unix system, use the:
quota -v
command. For more general quota information and specific quota information for comp.uark.edu, see the Unix System User Quotas.
For help in bringing down your usage, see our page on the du Command.
Email from your Unix Account
You can access your uark.edu mail account from your comp.uark.edu account or your cavern mail from your cavern.uark.edu account using Pine. See our Forwarding Mail from cavern.uark.edu page for more information.
Unix Account Passwords
You can use PASSweb to reset your comp.uark.edu and/or cavern.uark.edu passwords. See our Password Guidelines for more information.
Other Available Unix Applications
Other applications available on our Unix servers include two calendar programs and a text-based web browser called Lynx that can be used when testing web pages for ADA compliancy.
Common Unix Commands
Informational
quota -v |
Show amount of space used in account |
du -k |
Show disk usage by directory (in kilobytes) |
uptime |
Show miscellaneous information about the system |
history |
Program used to repeat commands |
!! |
Repeat last command |
!# |
Repeat the command with the number # from the history list |
date |
Returns the current date and time |
cal |
Calendar program |
Text Management
grep string filename |
Search for text string in filename |
tail filename |
Deliver the last part of the file filename |
head filename |
Deliver the first part of the file filename |
cat filename |
View a short file |
more filename |
View a long file |
Files and File Management
ls -al | more |
List files/directories (for large lists of files) |
ls -al |
List all files and directories (small number of files) |
touch |
Create a empty file |
echo |
Print something to standard output |
mkdir |
Create a directory |
cd |
Change directories |
rmdir |
Remove a directory |
pwd |
Print working directory |
mv |
Rename or move a file |
rm |
Remove a file |
cp |
Copy a file |
chmod paramaters filename |
Change permissions of a file or directory |
chown paramaters filename |
Change owner of a file or directory |
chgrp paramaters filename |
Change group of a file or directory |
Information On Other Users and Systems
finger email address |
Get extensive information on another user |
who |
Get brief information on another user/everyone logged on |
w |
See what program another user is currently using |
ping hostname |
Checks to see if hostname is alive |
last parameter |
Display login/logout information about users and terminals |
nslookup parameter |
Query nameserver |
whois parameter |
Internet user name directory service |
whoami |
Display user information |
who am i |
Display more user information |
ytalk |
Communicate with one or more other users in real-time |
mesg |
Allow/Disallow communication with other users |
Fun
fortune |
Gives you a fortune or quote |
ytalk |
Communicate with one or more other users in real-time |
banner string |
Prints user-defined string in banner format |
write userid |
Allows you to write to the screen of userid |
mesg |
Allow/Disallow communication with other users (so people can't write you) |
Programs & Applications
ftp |
File Transfer Protocol |
nn |
NetNews - USENET newsgroup reader |
lynx |
Text based web browser |
pine |
email program |
pico |
text editor |
pilot |
file management tool |
vi |
VIsual editor - text editor |
Reference
man -k |
Online reference manual |
lp -d queuename filename(s) |
Print command |
clear |
Clear the screen |
passwd |
Change Unix account password |
logout (or exit) |
Log off Unix account |
Troubleshooting
ps -fu userid |
Identify current processes you own |
kill -9 pidnumber |
Kill a process you own |
cp /etc/skel/.* ~ |
Copy over needed system files( i.e. .cshrc .login ) |
More Help
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