system -- an overview

system -- an overview

Loading files:

autoload -- arrange for a function to be loaded automatically

input -- read Macaulay 2 commands and echo

load -- read Macaulay 2 commands

needs -- read Macaulay 2 commands if necessary

Echoing characters:

clearEcho -- turn off echoing

setEcho -- turn on echoing

Dumping and restoring the state of the system:

dumpdata -- dump state of the system to a file

loaddata -- load state of the system from a file

restart -- restart Macaulay 2

addStartFunction -- add a startup function

addEndFunction -- add an ending function

Interface to the operating system:

alarm -- set an alarm

currentDirectory -- current working directory

exec -- execute another program

exit -- exit the program

fork -- fork the process

getenv -- get value of environment variable

processID -- the process identifier

path -- list of directories to look in

quit -- quit the program

run -- run an external command

sleep -- sleep for a while

time -- time a computation

timing -- time a computation

temporaryFileName -- make a temporary file name

wait -- wait for child process

Variables with information about the state of the current process:

commandLine -- the command line arguments

environment -- the environment variables

version -- information about this version of the program

Miscellaneous commands:

getWWW -- get a web page

Dealing with the garbage collector:

collectGarbage -- collect the garbage in memory