@ is a special array


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting @ is a special array
# 1  
Old 02-03-2010
@ is a special array

Hi all,

I've got this silly problem:
Code:
var="foo bar baz"; echo "${var% *}"; myEcho() { echo "\"${@::${#@}}\"" -- ${@: -1}; }; myEcho foo bar baz
foo bar
"foo bar" -- baz

that is OK, but
Code:
set -x;manSearch() { man -LC -P"less -p \"${@::${#*}}\" ${*: -1}"; }; manSearch Parameter Expansion bash

tells:
Code:
+ manSearch Parameter Expansion bash
+ man -LC '-Pless -p "Parameter Expansion" bash'
What manual page do you want?

Thanks in advance
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bash arrays: rebin/interpolate smaller array to large array

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

Pass array to a function and display the array

Hi All I have multiple arrays like below. set -A val1 1 2 4 5 set -A val2 a b c d . . . Now i would like to pass the individual arrays one by one to a function and display/ do some action. Note : I am using ksh Can you please advise any solution... Thanks in advance. (7 Replies)
Discussion started by: Girish19
7 Replies

3. Shell Programming and Scripting

Bash 3.2 - Array / Regex - IF 3rd member in array ends in 5 digits then do somthing...

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

4. Shell Programming and Scripting

PERL : Read an array and write to another array with intial string pattern checks

I have an array and two variables as below, I need to check if $datevar is present in $filename. If so, i need to replace $filename with the values in the array. I need the output inside an ARRAY How can this be done. Any help will be appreciated. Thanks in advance. (2 Replies)
Discussion started by: irudayaraj
2 Replies

5. Shell Programming and Scripting

Store all the passed arguments in an array and display the array

Hi I want to write a script which store all the parameters passed to the script into an array. Once it is stored I want scan through the array and and delete those files for last month present inside the directory. The files in directory is appneded with YYYY_MM_DD. I want to know how can I... (3 Replies)
Discussion started by: dgmm
3 Replies

6. Shell Programming and Scripting

perl, put one array into many array when field is equal to sth

Hi Everyone, #!/usr/bin/perl use strict; use warnings; my @test=("a;b;qqq;c;d","a;b;ggg;c;d","a;b;qqq;c;d"); would like to split the @test array into two array: @test1=(("a;b;qqq;c;d","a;b;qqq;c;d"); and @test2=("a;b;ggg;c;d"); means search for 3rd filed. Thanks find the... (0 Replies)
Discussion started by: jimmy_y
0 Replies

7. Shell Programming and Scripting

PHP: Search Multi-Dimensional(nested) array and export values of currenly worked on array.

Hi All, I'm writing a nagios check that will see if our ldap servers are in sync... I got the status data into a nested array, I would like to search key of each array and if "OK" is NOT present, echo other key=>values in the current array to a variable so...eg...let take the single array... (1 Reply)
Discussion started by: zeekblack
1 Replies

8. Programming

Creating an array to hold posix thread ids: Only dynamic array works

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

9. UNIX for Dummies Questions & Answers

Array with special Characters

Hi, I would write a shell script to execute a series of command. However, if the cmd contains "-" in the array. It fails to do so. I'd tried use ', " or \ but get the same result. Output: (1 Reply)
Discussion started by: donaldfung
1 Replies

10. Shell Programming and Scripting

create array holding characters from sring then echo array.

Hi, I wish to store $string1 in $string1array a character in each array element. Then i wish to echo the entire array to the screen so that it reads as the normal string again. I have been trying with the code below but does not work. Please help... To put string into array: ... (5 Replies)
Discussion started by: rorey_breaker
5 Replies
Login or Register to Ask a Question
Mojo::JSON::Pointer(3pm)				User Contributed Perl Documentation				  Mojo::JSON::Pointer(3pm)

NAME
Mojo::JSON::Pointer - JSON Pointers SYNOPSIS
use Mojo::JSON::Pointer; my $p = Mojo::JSON::Pointer->new; say $p->get({foo => [23, 'bar']}, '/foo/1'); say 'Contains "/foo".' if $p->contains({foo => [23, 'bar']}, '/foo'); DESCRIPTION
Mojo::JSON::Pointer implements JSON Pointers as described in http://tools.ietf.org/html/draft-ietf-appsawg-json-pointer <http://tools.ietf.org/html/draft-ietf-appsawg-json-pointer>. METHODS
"contains" my $success = $p->contains($data, '/foo/1'); Check if data structure contains a value that can be identified with the given JSON Pointer. # True $p->contains({foo => 'bar', baz => [4, 5, 6]}, '/foo'); $p->contains({foo => 'bar', baz => [4, 5, 6]}, '/baz/2'); # False $p->contains({foo => 'bar', baz => [4, 5, 6]}, '/bar'); $p->contains({foo => 'bar', baz => [4, 5, 6]}, '/baz/9'); "get" my $value = $p->get($data, '/foo/bar'); Extract value identified by the given JSON Pointer. # "bar" $p->get({foo => 'bar', baz => [4, 5, 6]}, '/foo'); # "4" $p->get({foo => 'bar', baz => [4, 5, 6]}, '/baz/0'); # "6" $p->get({foo => 'bar', baz => [4, 5, 6]}, '/baz/2'); SEE ALSO
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>. perl v5.14.2 2012-09-05 Mojo::JSON::Pointer(3pm)

Featured Tech Videos