It seems parantheses ( ) doesn't have the issue with spaces as I managed to use $((count+1)) without any issues.
So, [ character being misinterpreted as a command is not applicable for ( )
BTW ..What is ++ operator as in (( ++count )) called ?
Hello, Im writing a script that works by recursively going into directories with find. But I have some directories that have spaces in them.. so I need to parse the variables to add a backslash before the spaces.
Im not exactly sure how how to do this in bash, and honestly I dont think I know... (3 Replies)
I'm trying to run a Linux virus scan on a list of files/folders I have ported to list.txt in a format:
some file with spaces
some other file
but I need to feed my scanning script in the format:
some\ file\ with\ spaces/
some\ other\ file/
so I would like to read in list.txt and output... (6 Replies)
Hello dear community!
I've recently written a BASH function for auto completion of options. It works like following: if a user types a command and then an argument to this command which starts with "^-" and then presses TAB, then 'user_command --help (or -h)' is invoked and possible options are... (0 Replies)
Hey all,
I have a very simple regular expression that I use when I want to allow only letters with spaces. (I know this regex has a lot of shortcomings, but I'm still trying to learn them)
isAlpha='^*$'However, when I bring this over to BASH it doesn't allow me to enter spaces.
I use the... (3 Replies)
Hello!
I have one problem with my bash script - I would like to be able to read white space characters from stdin (for example single " ") - can I acomplish that somehow? I need to read only one character at the time, so I use read -s -n 1 var but it doesn't work for whitespaces apparently.
... (3 Replies)
There's a JavaScript file that I call from command line (there's a framework) like so:
./RunDiag.js param1:'string one here' param2:'string two here'
I have a shell script where I invoke the above command. I can run it in a script as simple as this
#!/bin/bash
stuff="./RunDiag.js... (4 Replies)
Hi guys, I'm new here and new to shell scripting so don't be hard on me
I'm trying to create a bash script to restart a process by name in Mac OSX.
I have no problem killing the application, the problem comes when launching it again.
I managed to store the path in a variable lets say
... (8 Replies)
I'm trying to search for all files in directory with particular GID then change the GID to match the UID of each file:
#!/bin/sh
for i in $(find /dump -gid 200 | sed 's/\ /\\\ /g' | sed 's/\&/\\\&/g'); do
chgrp $(ls -ln ${i} | awk '{print $3}') ${i}
done
I'm using sed to deal with... (7 Replies)
For the record, I already tried telling mgmt and the users to disallow spaces in filenames for this script, but it isn't happening for a number of ID10T-error-based reasons.
I have simple list of 3 files in a directory that are named like this:
bash-3.2$ ls -1 file*
file1
file1 part2... (2 Replies)
Hi everyone,
I'm trying to write my first ever shell script, the OS is Raspbian. The code I have written must be executed whenever a certain database has been modified. The database resides on a Windows server to which I have a mount point, and I have no control over the Windows server at all so... (2 Replies)
Discussion started by: gjws
2 Replies
LEARN ABOUT PHP
count
COUNT(3) 1 COUNT(3)count - Count all elements in an array, or something in an objectSYNOPSIS
int count (mixed $array_or_countable, [int $mode = COUNT_NORMAL])
DESCRIPTION
Counts all elements in an array, or something in an object.
For objects, if you have SPL installed, you can hook into count(3) by implementing interface Countable. The interface has exactly one
method, Countable::count, which returns the return value for the count(3) function.
Please see the Array section of the manual for a detailed explanation of how arrays are implemented and used in PHP.
PARAMETERS
o $array_or_countable
- An array or Countable object.
o $mode
- If the optional $mode parameter is set to COUNT_RECURSIVE (or 1), count(3) will recursively count the array. This is particu-
larly useful for counting all the elements of a multidimensional array.
Caution
count(3) can detect recursion to avoid an infinite loop, but will emit an E_WARNING every time it does (in case the array
contains itself more than once) and return a count higher than may be expected.
RETURN VALUES
Returns the number of elements in $array_or_countable. If the parameter is not an array or not an object with implemented Countable inter-
face, 1 will be returned. There is one exception, if $array_or_countable is NULL, 0 will be returned.
Caution
count(3) may return 0 for a variable that isn't set, but it may also return 0 for a variable that has been initialized with an empty
array. Use isset(3) to test if a variable is set.
EXAMPLES
Example #1
count(3) example
<?php
$a[0] = 1;
$a[1] = 3;
$a[2] = 5;
$result = count($a);
// $result == 3
$b[0] = 7;
$b[5] = 9;
$b[10] = 11;
$result = count($b);
// $result == 3
$result = count(null);
// $result == 0
$result = count(false);
// $result == 1
?>
Example #2
Recursive count(3) example
<?php
$food = array('fruits' => array('orange', 'banana', 'apple'),
'veggie' => array('carrot', 'collard', 'pea'));
// recursive count
echo count($food, COUNT_RECURSIVE); // output 8
// normal count
echo count($food); // output 2
?>
SEE ALSO is_array(3), isset(3), strlen(3).
PHP Documentation Group COUNT(3)