Now that I have getch() to work, I have yet another problem. BTW, thank you for answering these questions, I do ask a lot, only because I am eager to know, what is a board used for anyways :)
Ok, he's the problem...
#include iostream.h
#include conio.h
int main()
{
char movement;
... (2 Replies)
what is the function of swap in linux why i have to create apsolutely a particion for the swap when i install (i installed lnx4win mandrake and made an automat. disk particion and the install program one of my disk partitions that was 3gb devidet in 4 one native 700mb swap 600mb and the others i... (1 Reply)
Hello
if I like to move file from defined directories system to new directory that not contained any directories system structure .
But I like to create the same file system structure as source directory for example :
I have 2 directories: foo1 and foo2
foo1 have directories and foo2 have... (2 Replies)
Hey my friend was asking me if i knew a way to cout how many different words in a file. I told him no not off hand, but i was thinking about it, and i started to wonder also. I imagine this is probably pretty simple im just missing something, I keep confusing my self with how you would compair and... (16 Replies)
Hi,
Can anyone please explain a little about df command. I have following question:
Following example is showing % used as 4 where as total free blocks are 15.46 out of 16.00 MB blocks.
df -m /test
Filesystem MBblocks Free %Used Iused %Iused ... (5 Replies)
Discussion started by: itsabhi9
5 Replies
LEARN ABOUT DEBIAN
unset
unset(3tcl) Tcl Built-In Commands unset(3tcl)__________________________________________________________________________________________________________________________________________________NAME
unset - Delete variables
SYNOPSIS
unset ?-nocomplain? ?--? ?name name name ...?
_________________________________________________________________DESCRIPTION
This command removes one or more variables. Each name is a variable name, specified in any of the ways acceptable to the set command. If
a name refers to an element of an array then that element is removed without affecting the rest of the array. If a name consists of an
array name with no parenthesized index, then the entire array is deleted. The unset command returns an empty string as result. If -nocom-
plain is specified as the first argument, any possible errors are suppressed. The option may not be abbreviated, in order to disambiguate
it from possible variable names. The option -- indicates the end of the options, and should be used if you wish to remove a variable with
the same name as any of the options. If an error occurs, any variables after the named one causing the error are not deleted. An error
can occur when the named variable does not exist, or the name refers to an array element but the variable is a scalar, or the name refers
to a variable in a non-existent namespace.
EXAMPLE
Create an array containing a mapping from some numbers to their squares and remove the array elements for non-prime numbers:
array set squares {
1 1 6 36
2 4 7 49
3 9 8 64
4 16 9 81
5 25 10 100
}
puts "The squares are:"
parray squares
unset squares(1)squares(4)squares(6)
unset squares(8)squares(9)squares(10)
puts "The prime squares are:"
parray squares
SEE ALSO set(3tcl), trace(3tcl), upvar(3tcl)KEYWORDS
remove, variable
Tcl 8.4 unset(3tcl)