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Homework and Emergencies Emergency UNIX and Linux Support Bash - command substution not working Post 302926334 by sreyan32 on Sunday 23rd of November 2014 12:51:58 PM
Old 11-23-2014
Bash - command substution not working

For some reason I cannot use command substitution in my bash shell in Fedora.

Code:
 
 The following commands give me the following outputs-:
  
 [Sreyan@localhost ~]$ $(( $(w| wc -l) - 2 ))
Command not found. 
 
[Sreyan@localhost ~]$ `ls`
Command not found. 
 
[Sreyan@localhost ~]$ $("date")
Command not found. 
 [Sreyan@localhost ~]$ $(ls)
Command not found. 
 [Sreyan@localhost ~]$ $(( $(date +%s) / 86400 ))
Command not found.

What am I doing wrong ? I cannot complete my assignments without command substitution. That's why I am posting here. I am on Fedora 14 32bit.
 

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Mojolicious::Command::generate(3pm)			User Contributed Perl Documentation		       Mojolicious::Command::generate(3pm)

NAME
Mojolicious::Command::generate - Generator command SYNOPSIS
use Mojolicious::Command::generate; my $generator = Mojolicious::Command::generate->new; $generator->run(@ARGV); DESCRIPTION
Mojolicious::Command::generate lists available generators. ATTRIBUTES
Mojolicious::Command::generate inherits all attributes from Mojolicious::Commands and implements the following new ones. "description" my $description = $generator->description; $generator = $generator->description('Foo!'); Short description of this command, used for the command list. "hint" my $hint = $generator->hint; $generator = $generator->hint('Foo!'); Short hint shown after listing available generator commands. "message" my $message = $generator->message; $generator = $generator->message('Bar!'); Short usage message shown before listing available generator commands. "namespaces" my $namespaces = $generator->namespaces; $generator = $generator->namespaces(['Mojo::Command::generate']); Namespaces to search for available generator commands, defaults to Mojolicious::Command::generate and Mojo::Command::generate. METHODS
Mojolicious::Command::generate inherits all methods from Mojolicious::Commands and implements the following new ones. "help" $generator->help('app'); Print usage information for generator command. SEE ALSO
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>. perl v5.14.2 2012-09-05 Mojolicious::Command::generate(3pm)
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