Currently, I am planning a migration between machine which under True64UNIX. The new machine will run with higher version O/S. My question is, is there any solution on migrating one machine to another which with different O/S version? My goal is keeping minimum impact to the users.
Excuse my... (1 Reply)
I'm trying to see every file which my group (staff) has in a certain directory, recursively. The pipe
ls -l -R | grep staff
is not working exactly as I want, as for every directory to which my user does not have access, a line like:
ls: ./directory/lost+found: The file access permissions do not... (5 Replies)
If I have an oracle 9 database environment on a san running solaris 5.8 as the os. Can I plug the san into a Solaris 5.9 environment and have the database work ? - as long as binaries are on the san (1 Reply)
I have some UFS volumes (non root), that I would like to change into ZFS volumes.
Is this possible ?
I think the only method is to create a new zfs volume and copy the data accoss, this would take a long time for us. Is there a quicker way ?
Regards (5 Replies)
Here is the issue:
I am building a database server using Solaris 10x86 U8.
The system is jumpstarted with mpxio enabled and booting from the san.
We need to have powerpath 5.3 installed and would like to have powerpath take control of the the boot san as well or have mpxio control the san... (2 Replies)
Hi ,
I would like to (MYSQL) migrate the all the data from solari's to linux box.
I have checked whether mysql is installed or not.
rpm -qa | grep -i mysql
I confirmed !!!!
I want to know the following points.
1) How can get to know what are mysql data files and location as well.... (4 Replies)
Hi,I am using following code for FTP in shell script file and it is working.Now I want to migrate from FTP to SFTP.What code changes/steps I have to perform for SFTP ?
ftp -in <<FIN
open $SAP_UP_SERVER
user $SAP_UP_USER $SAP_UP_PASSWORD
asc
put... (7 Replies)
Discussion started by: Nitin Varshneya
7 Replies
LEARN ABOUT MOJAVE
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)