Basic help Post: 302952972

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Top Forums UNIX for Dummies Questions & Answers Basic help Post 302952972 by bakunin on Monday 24th of August 2015 04:13:38 PM

08-24-2015

Registered User

Most has already been said, but:

`command` and $(command) does basically the same. It executes "command" and uses the output of this command to complete the command line. "command" could either be a single command or even a series of commands, a pipeline, etc..

Example:

Code:

command1 $(command2)

will first execute "command2", then put its output onto the commandline and execute the resulting line. Suppose the output to be "hello world" the shell would try to execute

Code:

command1 "hello world"

after completing "command2". The mechanism is called "process substitution".

The first variant is deprecated, has a lot of shortcomings and should be avoided. Use the second variant instead whenever possible.

Only very old shells (the original Bourne shell for instance) support the first variant(called "backticks") only. Modern shells (ksh, ksh93, bash, ...) support both variants but the former only for backwards compatibility.

I hope this helps.

bakunin

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LEARN ABOUT DEBIAN

odffindbasic

ODFFINDBASIC(1p)					User Contributed Perl Documentation					  ODFFINDBASIC(1p)

NAME

       odffindbasic - Basic macro removal from OpenOffice.org files

USAGE

       odffindbasic [options] <sourcefile> [<targetfile>]

DESCRIPTION

       A simple command that allows the user to detect, export or remove the Basic modules from a regular OpenOffice.org file.

       Without option, the program displays the number of Basic modules found in the file.

       The 2nd filename is used in combination with the --delete option.

OPTIONS

	       --nocount
		       Prevents the program from displaying the number of Basic
		       modules found.

	       --delete -d
		       If this option is set, the Basic modules are physically
		       deleted. The file manifest is updated accordingly.
		       However, the document content remains unchanged, even if
		       it contains some references to the deleted macros. The
		       code is removed (so the macros are no longer executable).
		       If a target file name is provided as a 2nd argument, the
		       changes are saved in it and the source file remains
		       unchanged.

	       --export -e
		       Exports the macros. Every Basic module is extracted and
		       converted to a flat Basic source file in the current
		       directory. The name of each created file is constructed
		       according to the corresponding path in the ODF file, and
		       its suffix is "bas".

	       --list -l
		       The Basic modules are listed through the standard
		       output.

	       --verbose
		       Some information messages are printed.

perl v5.14.2							    2008-05-04							  ODFFINDBASIC(1p)