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Top Forums Shell Programming and Scripting Blog-Thread: Creating a Shell Wrapper and Runtime Modifier (SWARM) Post 303045285 by sea on Sunday 15th of March 2020 12:18:02 PM
Currently listening: End of Line by Daft Punk, Tron Legacy OST

Oh what whall I say...
That "-> https://www.unix.com/shell-programmi...-new-post.html <-" was really costing my nerves!
Thanks here again to Made In Germany (MIG) for his 'echo wrappers' (and the additional help)!

Luckily at least ask seemed to work 'out of the box' for the pipe tweaks today. Smilie

Allthough the average load & output time was around 0.150 s (0.097-0.210), it recently became 'jumps' up to 0.300 or higher.
As a natural tweaker, I wanted to fix this, one breaks things along the way - which helped to make the load sequence more stable.

As I had prepared a subshell process if no $COLUMNS and no $LINES should be available,
to have them calculated and exported, but since my sytem has them at hand, well, I just assumed the code would work,
since there were subprocess and I had seen with set -x that the code indeed was executed in the shell.

Regardless, the exported variables were not to be found in the shell I sourced the file with the the sub process in from.
Something like this:
Code:
[sea/ .bin]$ cat testfile 
(
	declare -g my_test_a="a test"
	export my_test_b="an exported beer"
)
[sea/ .bin]$ . testfile 
[sea/ .bin]$ echo $my_test_a

[sea/ .bin]$ echo $my_test_b

Well, something like this, but with a looped sleep while grep checked the ps output for the $PPID as actual sub process.

That was quite, disencouraging.
This would have been so cool, real multi-tasking in console!
Guess I'm too much of a dreamer Smilie

Next will be alot of small utility functions, and to finalize the current core commands with 'help' functionality - before adding new core (usualy slitly bigger/ more complex command functions..
This User Gave Thanks to sea For This Post:
 
Test Your Knowledge in Computers #199
Difficulty: Easy
The TIOBE Index for October 2019 proclaimed that Python is becoming the new big language in favor of languages such as PHP and Perl.
True or False?

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FIREFOX(1)							Linux User's Manual							FIREFOX(1)

NAME
firefox - a Web browser for X11 derived from the Mozilla browser SYNOPSIS
firefox [OPTIONS] [URL] firefox-bin [OPTIONS] [URL] DESCRIPTION
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. USAGE
firefox is a simple shell script that will set up the environment for the actual executable, firefox-bin. OPTIONS
A summary of the options supported by firefox is included below. GTK options --gdk-debug=FLAGS Gdk debugging flags to set --gdk-no-debug=FLAGS Gdk debugging flags to unset --gtk-debug=FLAGS Gtk+ debugging flags to set --gtk-no-debug=FLAGS Gtk+ debugging flags to unset --gtk-module=MODULE Load an additional Gtk module X11 options --display=DISPLAY X display to use --sync Make X calls synchronous --no-xshm Don't use X shared memory extension --xim-preedit=STYLE --xim-status=STYLE --g-fatal-warnings Make all warnings fatal Firefox options -h, -help Show summary of options. -v, -version Print /usr/bin/firefox-bin version. -CreateProfile profile Create profile. -P profile Start with profile. -ProfileManager Start with profile manager. -remote command Execute command in an already running Firefox process. For more info, see: http://www.mozilla.org/unix/remote.html -jsconsole Start with Javascript Console -chrome url Load the specified chrome. -no-remote Don't connect to any other running instances of firefox. Use this if you want to run firefox in an entirely new process. By default, firefox will delegate a command to an already running instance. -safe-mode Start firefox in safe-mode. This disables all third-party extensions, and may be necessary if you are having problems with an exten- sion you installed. -new-tab url Open url in a new tab. -new-window url Open url in a new window. -preferences Open the preferences dialog. -private Start firefox in private browsing mode. -private-toggle Toggle private browsing mode. -setDefaultBrowser Set firefox as the default web browser. -search term Search for term with your default search engine. -migration Start with migration wizard. -new-instance Open new instance, not a new window in running instance. FILES
/usr/bin/firefox - shell script wrapping firefox /usr/lib/mozilla/firefox-bin - firefox executable VERSION
1.0 BUGS
To report a bug, please visit http://bugzilla.mozilla.org/ SEE ALSO
mozilla(1) AUTHORS
The Mozilla Organization http://www.mozilla.org/about.html firefox August 07, 2001 FIREFOX(1)

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