iB::Topic::Aghhh! Keeping shell window open after menu launch

	Damn Small Linux :: Damn Small Linux Board The DSL Forums

» Welcome Guest
[ Log In :: Register ]

Damn Small Linux Board » MyDSL Extensions » myDSL Extensions (deprecated) » Aghhh! Keeping shell window open after menu launch

		Mini-ITX Boards Sale, Fanless BareBones Mini-ITX, Bootable 1G DSL USBs, 533MHz Fanless PC <-- SALE $200 each!
		Get The Official Damn Small Linux Book. DSL Market , Great VPS hosting provided by Tektonic

Pages: (2) </ [1] 2 >/

[ Track this topic :: Email this topic :: Print this topic ]

Topic: Aghhh! Keeping shell window open after menu launch, Going stark raving mad

< Next Oldest | Next Newest >

WoofyDugfock Offline

Group: Members
Posts: 146
Joined: Sep. 2004

Posted: Oct. 11 2004,13:04

How do you keep a window open after running an executable?

Having conquered editing my fluxbox menus to add apps installed via synaptic, I thought it might be pleasant to be able to launch the command-line prog 'wipe' (say with the help info) from the right-click menu. This is a secure file deletion utility from apt-get and runs just dandy from a shell.

Now I've tried a hundred things - all of them open a window for a picosecond before closing, presumably running wipe for that picosecond. For eg:

[exec] (Wipe) {rxvt -rv -fn fixed -T "Wipe" -e /usr/bin/wipe -h}
# this is in imitation of the bashburn line

I've also tried calling Xterm instead which is supposed to have a -hold option to keep a window open after executing according to man - this don't work. But then dsl doesn't have he full version of this, does it?

I've tried a lot of googling without success - too many dead-ends to remember.

Agghhhhhhh!!!!

--------------
"We don't need no stinkin' Windows"

http://news.zdnet.co.uk/software/linuxunix/0,39020390,39149796,00.htm

mikshaw

Group: Members
Posts: 4856
Joined: July 2004

Posted: Oct. 12 2004,02:42

I think the xterm in DSL is still rxvt, so xterm options which aren't available in rxvt probably won't work.
Personally I just open a terminal and type the command if I want the term to remain open....it's really pretty easy =o)

--------------
http://www.tldp.org/LDP/intro-linux/html/index.html

WoofyDugfock Offline

Group: Members
Posts: 146
Joined: Sep. 2004

Posted: Oct. 12 2004,05:37

Thanks for info about rxvt. Granted, just opening a shell and typing in a shell is easy enough. But I suppose it's become more the principle of the thing now! (I'm nothing if not stubborn).

I mean, the bashburn line I quoted above does it for bashburn using rxvt, so it must be possible. But exactly the same syntax doesn't work for another command line executable!

I noticed while I was googling that someone had had exactly the same question on a forum for some type of CLI nix implementation on MacOSX. There it had been solved two ways but the best was by running a simple sh script foo.sh from the line in the desktop menu prefs which opened a window and then executed whatever argument(s) followed the script using {*}. The window then wouldn't close until you did something in it. But I copied both methods and tried and they didn't work - either under sh or bash - but maybe different syntax. I've had trouble finding it again but I'll have another look.

Any 'nix 'perts out there?

--------------
"We don't need no stinkin' Windows"

http://news.zdnet.co.uk/software/linuxunix/0,39020390,39149796,00.htm

WoofyDugfock
Unregistered

Posted: Oct. 12 2004,14:30

Well I've found a brute force solution of sorts mainly by very much trial and error however I doubt it's the best one. (Coders avert thy gaze).

I wrote a little script opt/burble.sh which diplays the wipe help file and then calls the bash shell in an infinite (?) loop so the !@#^^&&**
bastard can't close. Bend to my will or run forever .. So at least using the fluxbox menu to access wipe throws up the help file to read and keeps a shell open:

#!/bin/sh
/usr/bin/wipe -h
while true
do
/bin/bash
done

In /home/dsl/.fluxbox/menu I then put:

[exec] (Wipe) {sudo rxvt -rv -fn fixed -T "Wipe" -e /opt/./burble.sh}

I thought you'd be horrified! You can't quit the shell by typing exit but the window can be closed by clicking the X.
Of course, I wonder if the loop is still running underneath in which case it needs an improvement to shut that off!??

I tried experimenting with "wait" but to no avail.

I gather that the actual problem is that wipe is running as a child of rxvt parent and the parent terminates when the child does, or something.
However I don't know
enough (anything) about process management in linux to fix this, 'fork()' and such.

Takers?

clacker

Group: Members
Posts: 570
Joined: June 2004

Posted: Oct. 12 2004,17:23

I'm more a giver than a taker.

woofy, have you tried sleep? I find that sleep can be a useful thing sometimes. As in sleep 15 at the end of a script to keep the window open.

An even better solution is to use a line like this:

[exec] (Wipe) {rxvt -rv -T "Wipe" -e /bin/bash --init-file /opt/.../burble}

and put your commands in the burble file. That uses burble as a start up script for bash. When that's done, you're in a bash shell. Do only that and you're OK, but I added the PS1 line to match the prompt to the default one. My burble would look like this:

PS1='\u@\h:\w\$ '
/usr/bin/wipe -h

5 replies since Oct. 11 2004,13:04

< Next Oldest | Next Newest >

[ Track this topic :: Email this topic :: Print this topic ]

Pages: (2) </ [1] 2 >/

Damn Small Linux Board » MyDSL Extensions » myDSL Extensions (deprecated) » Aghhh! Keeping shell window open after menu launch