# a=unix;ix=0; for i in `fold -w1 <(echo $a)`; do array[ix]=$i; echo "$ix. variable of array->" ${array[ix]}; let ix=$ix+1; done
0. variable of array-> u
1. variable of array-> n
2. variable of array-> i
3. variable of array-> x
Hi, I am trying to combine 2 strings into one new string. I know there are existing threads on this topic, but I am having troubles. The variables have variables within their names which is causing me problems. Bad subsitution is the error.
The problem line is in red below.
thanks (again) to... (1 Reply)
Hi All,
I have a problem assigning variables to script.I have a script in which i have a while loop now i have to assign some values obtained to an array which will be used later in the script.Can anyone help how to do that.
At present my scrot looks like:
co=0
pco=0
co=`cat /tmp/highcpu... (4 Replies)
Hi
I am new to shell scripting and i am preparing a script.
for now i am work on a sub part of it..but i am unable to make it work.
---
the test code that i am working on
--------------------------
IFS=""
Sample_eve=`psg proc_s | grep tY`
n=0
for line in $Sample_eve... (41 Replies)
Hi,
I'm trying to extract the middle of an array that is of
variable length but always has a first and last common
element,
The following works OK...
#!/bin/bash
ARRAY='switch'
ARRAY='option1'
ARRAY='option2'
ARRAY='option3'
ARRAY='value'
SWITCH=${ARRAY:0:1}
VALUE=${ARRAY:(-1)}... (1 Reply)
Hello everyone,
My problem looks quite simple , how to assign a string with spaces and lines "\n" to a variable.
I've tried all kind of quoting and is impossible, bash always try to execute the string and never executes a simple assignation.
This is part of the code
... (1 Reply)
Okay, I've made threads on extracting fields and comparing strings in separate files in .csv's. I've written the following code with intentions of learning more.
I just want this one question answered: How can I assign fields from a file(comma separated) to variables?
My goal is to check... (0 Replies)
if i declare both but don't input any variables what values will the int array and file pointer array have on default, and if i want to reset any of the elements of both arrays to default, should i just set it to 0 or NULL or what? (1 Reply)
echo "hello123" | tr -dc '' | wc -c
using this command i can count the no of times a number from 0-9 occurs in the string "hello123"
but how do i save this result inside a variable?
if i do
x= echo "hello123" | tr -dc '' | wc -c
that does not work...plz suggest..thanks (3 Replies)
Hi,
This is the first time I see something like this, and I don't why it happens.
Please give me some help. I am really appreciate it.
Basically I am trying to remove all empty lines of an input..
#!/bin/bash
set -e
set -x
str1=`echo -e "\nhaha" | grep -v ^$`
#str2=`echo -e "\n" |... (4 Replies)
Hi
I'm trying to loop through an array that contains other arrays and these arrays consist of strings with spaces. The problem is that I can't seem to preserve the spacing in the string. The string with spaces are either divided into multiple items if I change IFS to \n or all the elements of... (4 Replies)
Discussion started by: kidmanos
4 Replies
LEARN ABOUT OPENDARWIN
variable
variable(n) Tcl Built-In Commands variable(n)
__________________________________________________________________________________________________________________________________________________NAME
variable - create and initialize a namespace variable
SYNOPSIS
variable ?name value...? name ?value?
_________________________________________________________________DESCRIPTION
This command is normally used within a namespace eval command to create one or more variables within a namespace. Each variable name is
initialized with value. The value for the last variable is optional.
If a variable name does not exist, it is created. In this case, if value is specified, it is assigned to the newly created variable. If
no value is specified, the new variable is left undefined. If the variable already exists, it is set to value if value is specified or
left unchanged if no value is given. Normally, name is unqualified (does not include the names of any containing namespaces), and the
variable is created in the current namespace. If name includes any namespace qualifiers, the variable is created in the specified names-
pace. If the variable is not defined, it will be visible to the namespace which command, but not to the info exists command.
If the variable command is executed inside a Tcl procedure, it creates local variables linked to the corresponding namespace variables (and
therefore these variables are listed by info locals.) In this way the variable command resembles the global command, although the global
command only links to variables in the global namespace. If any values are given, they are used to modify the values of the associated
namespace variables. If a namespace variable does not exist, it is created and optionally initialized.
A name argument cannot reference an element within an array. Instead, name should reference the entire array, and the initialization value
should be left off. After the variable has been declared, elements within the array can be set using ordinary set or array commands.
SEE ALSO
global(n), namespace(n), upvar(n)
KEYWORDS
global, namespace, procedure, variable
Tcl 8.0 variable(n)