Introduction to Unix and Networks
Introduction to Unix and Networks
Introduction to Unix and Networks
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Tr y some more X applications which are in /usr/bin/X11 or /usr/openwin/demo:<br />
xlogo &, <strong>to</strong>tally useless<br />
xe y es &, quite fun for 3 minutes<br />
xbiff &, useful<br />
hexcalc &, you thought you had escaped from hex!<br />
psycho &, desperate demonstration for salesmen<br />
xfontsel &, useful Xfont browser<br />
worm &, horr id<br />
xfig &, you need <strong>to</strong> study for this<br />
xedit &, Istill prefer emacs<br />
xloadimage, nice <strong>to</strong> see some high class images, look in /pub/gifs/....<br />
xmh &, mail h<strong>and</strong>ling prog<br />
xload &, keep a watch on the ethernet<br />
xman &, manual pages browser utility, could be useful<br />
roids &, shoot cosmic rocks before they collide with your space ship<br />
puzzle &, saves all those little bits of yellow not-quite-sliding plastic<br />
xtrek &, dubious benefit <strong>to</strong> mankind<br />
xkill, kills off x applications!<br />
rob@milly [46] ps -FA | grep rob<br />
rob 9713 1 0 Feb 17 ?4:07emacs -fn fixed -geometry 79x26+0+0<br />
rob 10991 8324 0 11:17:36 pts/110:14ghostview /tmp/rob.ps<br />
rob 15241 10991 017:54:42 pts/110:03gs -sDEVICE=x11 -dNOPAUSE -dQUIET -dSAFER -<br />
rob 9810 9713 0 Feb 17 ?0:00/usr/local/bin/ispell -a -m -B<br />
rob 8323 9160 008:29:47 ?0:09xterm<br />
rob 9160 9158 0 Feb 17 pts/00:01-tcsh<br />
rob 8321 9160 008:29:39 pts/00:04twm<br />
rob 8324 8323 008:29:56 pts/110:01tcsh<br />
rob 13970 1 0 Feb 17 ?0:15xbiff<br />
rob 15296 8324 1 18:02:18 pts/110:00grep rob<br />
$ kill 13970<br />
The process number (PID) can be wiped <strong>and</strong> pasted in<strong>to</strong> position after the kill comm<strong>and</strong> <strong>to</strong> avoid typing in<br />
the number.<br />
$ ls<br />
prac1.pasprac2.pas<br />
$ pc pract1.pas<br />
$ ls<br />
prac1.pasprac2.pasa.out<br />
$ lpr -Pfx prac1.pas<br />
$ lpq -Pfx<br />
no entries<br />
$<br />
lprm - This removes all your print jobs from the queue if you decide <strong>to</strong><br />
save a few branches for later. nb: the negative sign / hyphen.<br />
mail Mail is a ver y useful <strong>Unix</strong> facility <strong>to</strong> send <strong>and</strong> receive messages, known as<br />
e-mail, throughout the networ k, or wor ld. At UWE an alternative mail system is<br />
used called simeon.<br />
cd direc<strong>to</strong>ry_path Change direc<strong>to</strong>ry allows you <strong>to</strong> move around the file<br />
system which is organized <strong>to</strong> look like the roots of a tree.<br />
cd / puts you at the ver y <strong>to</strong>p of the hierarchy, use ls <strong>to</strong> see.<br />
cd puts you back home again.<br />
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