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Full Discussion: Bash - command substution not working
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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LEARN ABOUT DEBIAN

bjdwp

BJDWP(1)						      General Commands Manual							  BJDWP(1)

NAME

       bjdwp - Command line USB Blackberry Java Debug Wire Protocol

SYNOPSIS

       bjdwp [-h][-p pin][-P password][-v] address port

DESCRIPTION

       bjdwp  is  a  program that supports the Java Debug Wire Protocol over USB, which enables debugging of Java programs directly on your Black-
       berry.

       Support is experimental, and development is focused primarily on the BlackBerry Storm.

OPTIONS

       -p pin PIN of device to talk with.  Only needed if you have more than one Blackberry connected at once.

       -P password
	      Simplistic method to specify device password.  In a real application, this would be done using a more secure prompt.

       -v     Dump verbose protocol data during operation.

       -h, --help
	      Show summary of options.

ARGUMENTS

       The following arguments are required, in order to provide a socket where the JDWP server will listen for connections from the debugger.

       address
	      Most often 'localhost' but can be any IP or hostname on the machine running bjdwp.

       port   Port to listen on.

EXAMPLES

       Start the server and the USB connection to the device:

	    bjdwp localhost 8000

       Then start your java debugger:

	    jdb -connect com.sun.jdi.SocketAttach:hostname=localhost,port=8000

AUTHOR

       bjdwp was initially written for the Barry project by Nicolas VIVIEN.  This manual page was written by Chris Frey.

SEE ALSO

       http://www.netdirect.ca/software/packages/barry

								September 29, 2009							  BJDWP(1)
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