I have two mashines with RedHat 8.0......they connected with cross over cabel...I want use both mashines for Internet, but modem has only first computer... Maybe..through gateway ?....
What must i do for it ?......
sorry for my terrible english.... (3 Replies)
how can i do that in a script withough havin the script halt at the section where the top command is located. am writign a script that will send me the out put of unx commands if the load average of a machine goes beyond the recommended number.
top -n 20
i want to save this output to a file... (1 Reply)
i have a computer (sempron 2200+) with Suse 9.3 and another computer with windows 98 (PI 233 Mhz). I'm connect first computer (with Suse) on the Internet through ethernet but second computers in not connect. How can connect second computers on the internet (with 3 network card...two on the first... (8 Replies)
Hello
I've wrote a C++ program which does some mathematical calculations, but the problem is that it takes way too long on any computer to finish.
Is there anyway to make more than 1 computer do the processing so it can process faster? (5 Replies)
Okay, I am trying to come up with a multi-platform script to report top ten CPU and memory hog processes, which will be run by our enterprise monitoring application as an auto-action item when the CPU and Memory utilization gets reported as higher than a certain threshold
I use top on other... (5 Replies)
Here is an easy one.
Count the number of desktops and servers you have running at home, including your home office if you have one.
Don't count those that are in storage or you rarely use, count the ones that are powered on most, if not all, of the day (and night). (86 Replies)
Hi,
I need to rcp heavy files between 2 solaris 10/sparc M3000 computers. Currently theses 2 computers are linked via a switch/firewall and the rcp commands take a very long time, I have been told that this is because of the firewall (old one).
I asked my client to by a cross ethernet cable and... (2 Replies)
Discussion started by: zionassedo
2 Replies
LEARN ABOUT CENTOS
eval
eval(n) Tcl Built-In Commands eval(n)
__________________________________________________________________________________________________________________________________________________NAME
eval - Evaluate a Tcl script
SYNOPSIS
eval arg ?arg ...?
_________________________________________________________________DESCRIPTION
Eval takes one or more arguments, which together comprise a Tcl script containing one or more commands. Eval concatenates all its argu-
ments in the same fashion as the concat command, passes the concatenated string to the Tcl interpreter recursively, and returns the result
of that evaluation (or any error generated by it). Note that the list command quotes sequences of words in such a way that they are not
further expanded by the eval command.
EXAMPLES
Often, it is useful to store a fragment of a script in a variable and execute it later on with extra values appended. This technique is
used in a number of places throughout the Tcl core (e.g. in fcopy, lsort and trace command callbacks). This example shows how to do this
using core Tcl commands:
set script {
puts "logging now"
lappend $myCurrentLogVar
}
set myCurrentLogVar log1
# Set up a switch of logging variable part way through!
after 20000 set myCurrentLogVar log2
for {set i 0} {$i<10} {incr i} {
# Introduce a random delay
after [expr {int(5000 * rand())}]
update ;# Check for the asynch log switch
eval $script $i [clock clicks]
}
Note that in the most common case (where the script fragment is actually just a list of words forming a command prefix), it is better to |
use {*}$script when doing this sort of invocation pattern. It is less general than the eval command, and hence easier to make robust in |
practice. The following procedure acts in a way that is analogous to the lappend command, except it inserts the argument values at the
start of the list in the variable:
proc lprepend {varName args} {
upvar 1 $varName var
# Ensure that the variable exists and contains a list
lappend var
# Now we insert all the arguments in one go
set var [eval [list linsert $var 0] $args]
}
However, the last line would now normally be written without eval, like this: |
set var [linsert $var 0 {*}$args] |
SEE ALSO
catch(n), concat(n), error(n), interp(n), list(n), namespace(n), subst(n), tclvars(n), uplevel(n)
KEYWORDS
concatenate, evaluate, script
Tcl eval(n)