This is exactly what i said. I have marked bold the relevant part pertinent to "(( ... ))" and for "[[ ... ]]" have a look at what man test has to say about tests behavior.
When I log in from my linux workstation (CentOS4) to a solaris 8 server using SSH or telnet, the terminal settings don't seem to work well. When I tail or vi a file, I get a blank screen or no response, and I am no longer able to interact with the session. I have to type the escape sequence to... (2 Replies)
Hi all,
I would like to know how to have a color display in the terminal...
In the sense that,
In many linux terminals,we have color coded for each file type,
green for executable ,blue for dirs and so on...
I wanted to know how i can have the same arrangement in solaris(b-79a)
I am not... (5 Replies)
Hi,
I keep on getting the following error on my linux terminal. It did not harm my system so far, but I was wondering if this can be eliminated.
{
Gecko:4617): GLib-GObject-CRITICAL **: file gobject.c: line 1337 (g_object_unref): assertion `G_IS_OBJECT (object)' failed
(Gecko:4617):... (2 Replies)
Hello all
is there any free tool like linux tabbed terminal but for windows
im used to work with putty and its great but i wander if there something like putty
but with tabs
thanks (12 Replies)
hi im new to this and i just want to learn about linux and i just wanted to know how would i be able to perform a system check to see if a directory exists.
can any one help me? (2 Replies)
Hello!
I need to create a file and provide access to two users of the file under the same command in linuxs terminal window.
The question is how can I do it? (3 Replies)
Hello everyone, I have an interesting project I'd like to implement on a Linux server here at work. Essentially, I'd like to replace a handful of Windows servers with a single Linux server. The only task these Windows servers perform, is provide remote desktops via RDP protocol that people... (13 Replies)
Hi,
How can we get the process id of the terminal we are using?
When we logged in to unix, we have an associated terminal. we can use "tty" command to get the terminal we are using like:
/dev/pts/0
I want to know the process id of this terminal. Please reply as I searched a lot but I... (8 Replies)
Discussion started by: crazybisu
8 Replies
LEARN ABOUT REDHAT
while
while(n) Tcl Built-In Commands while(n)
__________________________________________________________________________________________________________________________________________________NAME
while - Execute script repeatedly as long as a condition is met
SYNOPSIS
while test body
_________________________________________________________________DESCRIPTION
The while command evaluates test as an expression (in the same way that expr evaluates its argument). The value of the expression must a
proper boolean value; if it is a true value then body is executed by passing it to the Tcl interpreter. Once body has been executed then
test is evaluated again, and the process repeats until eventually test evaluates to a false boolean value. Continue commands may be exe-
cuted inside body to terminate the current iteration of the loop, and break commands may be executed inside body to cause immediate termi-
nation of the while command. The while command always returns an empty string.
Note: test should almost always be enclosed in braces. If not, variable substitutions will be made before the while command starts execut-
ing, which means that variable changes made by the loop body will not be considered in the expression. This is likely to result in an
infinite loop. If test is enclosed in braces, variable substitutions are delayed until the expression is evaluated (before each loop iter-
ation), so changes in the variables will be visible. For an example, try the following script with and without the braces around $x<10:
set x 0
while {$x<10} {
puts "x is $x"
incr x
}
SEE ALSO
break(n), continue(n), for(n), foreach(n)
KEYWORDS
boolean value, loop, test, while
Tcl while(n)