03-11-2015
You may want to assign the results of the entire loop to a variable/array.
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All,
I would like to add the first 10 elements of an array. Here is how I am doing it now (only included first few add ops):
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###Grab the array values out of a file###
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hi all i am trying to save an awk value into an array in bash:
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((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)
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3. Windows & DOS: Issues & Discussions
Hello,
I am trying to assign $string = $a; #a= 10100
print " $string"; # showing 10100
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As above, is not capturing binary nos. in following format;
$string = '10100';
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kindly suggest. (5 Replies)
Discussion started by: shristi
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4. Shell Programming and Scripting
Hi every one.. I'm new to shell scripting... I would like to assign a single array element to a variable... Is it possible to do it....
Could any body help me.... (3 Replies)
Discussion started by: kaushik_87
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5. Shell Programming and Scripting
Hi gurus,
I need to create arrays from variables, via a loop.
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is this possible?
its kind of like incrementing the value of a number in a variable. but in this case, instead of the value of the variable being a number, it's just contents/strings/characters/alpha-numeric etc. NOT a number.
For instance:
VAR=Tommy
for all in $(blah blah)
do
... (2 Replies)
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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
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This question is for someone that's more familiar with Array Element.
I need to know if the maximum array element that can be assigned is 1024 and if its so, Is there a workaround solution when the counter exceeded 1024?
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9. UNIX for Beginners Questions & Answers
#!/bin/bash
X=(2H 4S 10D QC JD 9H 8S)
How do I unset the 10D from this array and save it to a file?
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I have an array in an external file, "array.txt", which contains:
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unset(3tcl) Tcl Built-In Commands unset(3tcl)
__________________________________________________________________________________________________________________________________________________
NAME
unset - Delete variables
SYNOPSIS
unset ?-nocomplain? ?--? ?name name name ...?
_________________________________________________________________
DESCRIPTION
This command removes one or more variables. Each name is a variable name, specified in any of the ways acceptable to the set command. If
a name refers to an element of an array then that element is removed without affecting the rest of the array. If a name consists of an
array name with no parenthesized index, then the entire array is deleted. The unset command returns an empty string as result. If -nocom-
plain is specified as the first argument, any possible errors are suppressed. The option may not be abbreviated, in order to disambiguate
it from possible variable names. The option -- indicates the end of the options, and should be used if you wish to remove a variable with
the same name as any of the options. If an error occurs, any variables after the named one causing the error are not deleted. An error
can occur when the named variable does not exist, or the name refers to an array element but the variable is a scalar, or the name refers
to a variable in a non-existent namespace.
EXAMPLE
Create an array containing a mapping from some numbers to their squares and remove the array elements for non-prime numbers:
array set squares {
1 1 6 36
2 4 7 49
3 9 8 64
4 16 9 81
5 25 10 100
}
puts "The squares are:"
parray squares
unset squares(1) squares(4) squares(6)
unset squares(8) squares(9) squares(10)
puts "The prime squares are:"
parray squares
SEE ALSO
set(3tcl), trace(3tcl), upvar(3tcl)
KEYWORDS
remove, variable
Tcl 8.4 unset(3tcl)