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Top Forums UNIX for Dummies Questions & Answers Significance of different shells? Post 302838897 by syregnar86 on Tuesday 30th of July 2013 06:20:19 PM
Old 07-30-2013
I see how "cd", "ls -l", "man", "chmod", "who", etc... may be considered external commands. However, say for example i'm using the ssh command to log in remotely from my macbook to another macbook. I'm told from system preferences/shared to enter the following from my command line.

ssh hostname@ipaddress

Will this be different among other shells or is this not considered an internal command?

What constitutes internal commands from external commands? Could you please provide an example of a command that differs between zsh and bash?

Thanks for the reply it was very helpful as a beginner in UNIX/LINUX.
 

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COMMAND-NOT-FOUND(1)					    http://en.opensuse.org/Sco					      COMMAND-NOT-FOUND(1)

NAME
command-not-found - A command-not-found handler SYNOPSIS
command-not-found {binary_name} {repository} ARGUMENTS
The following arguments are required: binary_name The name of binary you are looking for. repository The name of repository for search. For most cases, use zypp DESCRIPTION
command-not-found handler is designed to tell users which package contains a missing command. The handler is integrated to bash(1) and zsh(1) shells and is not necessary to call it directly. Just type a name of the command in your favourite shell and you'll get a result. If you consider c-n-f handler useless, just add unset command_not_found_handle to your profile or remove the command-not-found package. Handler doesn't call the command-not-found binary directly, it only prints info about it. If you want to invoke it automatically, just add export COMMAND_NOT_FOUND_AUTO=1 to your bash profile. EXAMPLE
: NORMAL USAGE For example you want to try blender, because you have heard that is an amazing program. So just type blender in shell: $ blender You get the following output: The program 'blender' can be found in the following package: * blender [ path: /usr/bin/blender, repository: zypp (openSUSE 11.1-0) ] Try installing with: sudo zypper install blender bash: blender: command not found SEE ALSO
scout(1) AUTHOR
Pavol Rusnak <stick@gk2.sk> Developer http://gitorious.org/opensus 08/07/2009 COMMAND-NOT-FOUND(1)
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