| Useful Terminal/Unix Commands | |
|---|---|
| Command | Meaning |
./a.out |
execute most recently successfully compiled program |
cd |
move (change directory / folder) to your home folder |
cd ~/cs362 |
move to your cs362 folder |
c++ -Wall -g *.cpp |
compile all C++ files ending in .cpp in this directory
executable is ./a.out |
cp x y |
copy the contents of file x and name the copy y |
cp -r dirName . |
copy the directory dirName to the current directory
keeping the name of the original (the dot means use same name) |
emacs x.cpp |
edit file x.cpp in text editor (not graphical from home; see below) |
history |
get a list of commands you've used (!num repeats one) |
javac *.java |
compile all the Java classes in this directory |
java MainClass |
execute the Java class named MainClass (don't use .class)
use javac to create the class files |
less b |
display file b page by page; arrows move up and down;
spacebar moves down; q quits |
man command |
shows the manual entry (help) of the command |
logout |
disconnect from the machine |
lp x.cpp |
print file x.cpp to printer; only plain text files |
ls |
list the files in the current directory |
ls -l |
list files, last time changed, size, and permissions |
mv x.c x.cpp |
rename file x.c to x.cpp (C++ files end in .cpp) |
rm junk |
remove file named junk; can't be recovered |
Control-c stops the running program. Typing Control-d indicates end of input.
If you are connected to the Internet, you can use a program called ssh.
If you don't have one of those programs, check out
MUCS Secure Connections
(http://cs.millersville.edu/security).
You can use that to connect to a lab machine such as
shaw, perlis, hopper, or one of the many others.
The full address for hopper
would be hopper.cs.millersville.edu all lowercase and letters.
Note the cs between
the machine name and the university's domain name.
Use logout when you are done.
When you use ssh, you will have a terminal, not graphical, connection as if you were using the terminal application in the lab. Use the arrow keys in the terminal to repeat commands. The emacs in a terminal is not graphical and may not have syntax highlighting or working menus. But you can get by with very few commands. For simplicity at the beginning of the course, you may compile and run in the terminal rather than emacs. Using two terminal windows makes that easy. You will learn more emacs commands as the course continues, but this is a minimal set that is enough to get work done.
|
Minimal Set of Emacs Commands
Use arrow keys - not mouse - to move around | |
|---|---|
| Command | Meaning |
emacs whatever.cpp |
start emacs editing whatever.cpp |
control-x control-s |
save the current buffer |
control-x control-c |
quit emacs |