Hi,
I am trying to make an associative array to use in a popup_menu on a website. Here is what i have:
foreach $entr ( @entries )
{
$temp_uid = $entr->get_value(uid);
$temp_naam = $entr->get_value(sn);
$s++;
}
This is the popup_menu i want to use it in.
popup_menu(-name=>'modcon',... (4 Replies)
About associative nature of awk arrays i'm still confused, not able to understand yet how array element can be accessed based on a string, I got one example at gawk manual to illustrate associative nature of awk arrays, it goes here:
Codeawk '
# Print list of word frequencies
{
for (i = 1;... (3 Replies)
Hello,
i'm writing a little script that checks a .txt file for a specific ID that came after 9:10 am which outputs it's data to a file LateUsers.txt
once done , it should mention the following:
Number of late users
Number of unique late users
Over all late users percentage
number of... (0 Replies)
if i declare both but don't input any variables what values will the int array and file pointer array have on default, and if i want to reset any of the elements of both arrays to default, should i just set it to 0 or NULL or what? (1 Reply)
I have this piece of code. The first if statement is not working, however the second if statement is working fine.
I have set a value for Srcs to be file.srcs and want to print it.
If no value for Rcvs is set, I get the print statement correctly
hasValue="file.srcs"
if ${hasValue}; then
... (0 Replies)
I have the following code, and I am changing it to
#!/bin/bash
hasArgumentCModInfile=0
hasArgumentSrcsInfile=0
hasArgumentRcvsInfile=0
OLDIFS="$IFS"
IFS="|=" # IFS controls splitting. Split on "|" and "=", not whitespace.
set -- $* # Set the positional... (3 Replies)
I have an associative array named table
declare -A table
table="fruit"
table="veggie"
table="GT"
table="eminem"
Now say I have a variable returning the value highway
How do I find corresponding value GT ??
(this value that I find (GT in this case) is supposed to be the name of a mysql... (1 Reply)
Hi,
I have the following dataset.
A 2 1 272
A 2 2 333
A 2 3 222
A 3 1 222
A 3 2 11
B 1 1 112
B 1 2 998
B 2 1 667
C 1 1 887
C 1 2 887
C 2 1 998
I need to have an associate array based on the first column and generate a auto generated number column in the last column.
Needed output:... (2 Replies)
Hello together,
i make something wrong... I want an array that contains information to associate it for further processing.
Here is something from my bash... You will know, what I'm trying to do.
I have to point out in advance, that the variable $SYSOS is changing and not as static as in my... (2 Replies)
Discussion started by: Decstasy
2 Replies
LEARN ABOUT DEBIAN
eval
eval(3tcl) Tcl Built-In Commands eval(3tcl)__________________________________________________________________________________________________________________________________________________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(3tcl), concat(3tcl), error(3tcl), interp(3tcl), list(3tcl), namespace(3tcl), subst(3tcl), tclvars(3tcl), uplevel(3tcl)KEYWORDS
concatenate, evaluate, script
Tcleval(3tcl)