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How to Force command substitution evaluation in bash?

 
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Old 03-31-2016
RudiC:
I use BUPLOG twice and that is the problem:
Using BUPLOG twice means I call $(BackupRecords --log "$src") twice which means I get two different log file names. And remember, $(BackupRecords --log "$src") is identical to "$(date +'%Y%b%d%H%M%s')".
I get the same results with BackupRecords --log "$src" and "$(date +'%Y%b%d%H%M%s')": multiple file names. So how can I store the current date and time in an environment variable once and use the environment variable multiple times and not have it change.

Thanks
Siegfried
 
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LEARN ABOUT SUSE

cnf

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)