10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hello,
i need a bit of help on how to do this effectively in bash without a lot of extra looping or massive switch/case
i have a long array of M elements and a short array of N elements, so M > N always. M is not a multiple of N.
for case 1, I want to stretch N to fit M
arrayHuge
H = (... (2 Replies)
Discussion started by: f77hack
2 Replies
2. Shell Programming and Scripting
Hello,
I have a simple task and I am having some trouble with the syntax. I have a variable with an assigned value,
CMD_STRING='-L 22 -s 0 -r -O -A i -N 100 -n'
I would like to add that variable to an array. As far as I have been able to look up, the syntax should be something like,
... (4 Replies)
Discussion started by: LMHmedchem
4 Replies
3. Shell Programming and Scripting
while i've used arrays to work with variables, i've never used them to loop through a set of strings and wanted to ask the community for some feedback or assistance.
let me be specific. here's my code:
# URL port Variables
port2195=`nc -z $url2195 2195`
port2196=`nc -z $url2196 2196`... (5 Replies)
Discussion started by: hungryd
5 Replies
4. Shell Programming and Scripting
Trying to do some control flow parsing based on the index postion of an array member. Here is the pseudo code I am trying to write in (preferably in pure bash) where possible. I am thinking regex with do the trick, but need a little help.
pesudo code
if == ENDSINFIVEINTS ]]; then
do... (4 Replies)
Discussion started by: briandanielz
4 Replies
5. Shell Programming and Scripting
I would like to create a variable within my bash script using awk. I'm reading in a line from an external file, then outputting to a new file in a specific format. But, it doesnt quite work as I have expected and could use some help.
(A pertinent excerpt of ) the bash code is:
count=1
... (4 Replies)
Discussion started by: snoitacilppa
4 Replies
6. Shell Programming and Scripting
Hi,
Can someone help me with creating a bash shell script.
I need to create a script that gets a positive number n as an argument.
The script must create n directories in the current directory with names like map_1, map_2 etcetera. Each directory must be contained within its predecessor. So... (7 Replies)
Discussion started by: I-1
7 Replies
7. Shell Programming and Scripting
#!/bin/ksh
#export CLASSPATH=$CLASSPATH:~dialp/cso/classes:/opt/oracle/product/8.1.6/jdbc/lib/classes12.zip
#export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/oracle/product/8.1.6/lib
DATE="`date '+%m%d%Y'`"
PATH=.:$PATH
export PATH
town_name='123'
town_name='123'
town_name='345'... (1 Reply)
Discussion started by: priyanka3006
1 Replies
8. Shell Programming and Scripting
hi all i am trying to save an awk value into an array in bash:
total=`awk '{sum+=$3} END {print sum}' "$count".txt"`
((count++))
the above statement is in a while loop..
$count is to keep track of file numbers (1.txt,2.txt,3.txt,etc.)
i get the following error:
./lines1:... (1 Reply)
Discussion started by: npatwardhan
1 Replies
9. Programming
I am facing a strange error while creating posix threads:
Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output.
Snippet 1
This works:
--------------
int *threadids;
threadids = (int *) malloc (num_threads * sizeof(int));
... (4 Replies)
Discussion started by: kmehta
4 Replies
10. Shell Programming and Scripting
Hi all,
i am quite fimiliar with shell scripting but i wouldn't regard myself as a semi professional at it.
I am trying to create an array variable to read in 4 lines from a file using head and tail command in a pipeline and store each line into each array. I have done the scripting in unix... (2 Replies)
Discussion started by: scriptingmani
2 Replies
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 vars.) 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.
EXAMPLES
Create a variable in a namespace:
namespace eval foo {
variable bar 12345
}
Create an array in a namespace:
namespace eval someNS {
variable someAry
array set someAry {
someName someValue
otherName otherValue
}
}
Access variables in namespaces from a procedure:
namespace eval foo {
proc spong {} {
# Variable in this namespace
variable bar
puts "bar is $bar"
# Variable in another namespace
variable ::someNS::someAry
parray someAry
}
}
SEE ALSO
global(n), namespace(n), upvar(n)
KEYWORDS
global, namespace, procedure, variable
Tcl 8.0 variable(n)