(old)Puppy Linux Discussion Forum

Posted: **Mon 10 Jan 2011, 19:28**

How would I form a script that appeared in the rox right click menu adding an option to move the highlighted file to the trash?

Posted: **Mon 10 Jan 2011, 19:48**

Have you considered modifying the "Delete" option in ROX's right-click menu, so it moves the highlighted item(s) to the trash rather than deleting them?

Posted: **Mon 10 Jan 2011, 20:00**

name this script as "trash" and put it in or make a symlink in the sendto (or "open with") directory

Code: Select all

#!/bin/sh
[ ! -d $HOME/Trash ] && mkdir $HOME/Trash
mv $@ $HOME/Trash

(It doesn't remember where they came from though for "undelete")

Posted: **Mon 10 Jan 2011, 20:16**

Flash wrote:Have you considered modifying the "Delete" option in ROX's right-click menu, so it moves the highlighted item(s) to the trash rather than deleting them?

Thanks Flash, I will look at that script and see what I can learn.

Posted: **Mon 10 Jan 2011, 20:19**

technosaurus wrote:name this script as "trash" and put it in or make a symlink in the sendto (or "open with") directory
Code: Select all
#!/bin/sh
[ ! -d $HOME/Trash ] && mkdir $HOME/Trash
mv $@ $HOME/Trash
(It doesn't remember where they came from though for "undelete")

Thanks Technosaurus. A ready made solution. I will try to figure out how it works so I can use the elements again. Undelete does not matter. I guess I never even considered it an option.
I figured out a script to transfer mp3 downloads to my player but could not get this one.

Posted: **Mon 10 Jan 2011, 21:14**

OK, so

Code: Select all

[ ! -d $HOME/Trash ] && mkdir $HOME/Trash

looks for a folder called Trash and if it does not find it creates it. Cool. I know this because the code contains a 'teaching bomb', the actual directory in Puppy is called .Trash, so it made me another called Trash and moved the file there.

Code: Select all

mv $@ $HOME/Trash

is the bit that does the work then I guess. mv is straightforward, I guess $@ means 'currently selected file', HOME/Trash is straightforward but what does the leading $ sign in front of HOME/Trash tell it to do?

Posted: **Mon 10 Jan 2011, 21:26**

the . before Trash will make it a hidden folder though - if that's what you want

$@ is all selected files
$1 is the first selected file ... $2 and so on

$HOME is an environment variable that is exported by /etc/profile during startup ... for other (non-root) systems it would be /home/user

to see a complete list of environment variables enter this at a prompt:
env

the "$" just means it is a variable

others:
$# is the number of parameters passed to the script
$! is the pid of the last command
(there are a bunch of useful variables)

[ -d something ] returns true if something is a directory
the ! means not - so it returns true only if it is not a directory
the && afterward only executes if the preceding returns true

Posted: **Mon 10 Jan 2011, 21:31**

technosaurus wrote:the . before Trash will make it a hidden folder though - if that's what you want

$@ is all selected files
$1 is the first selected file ... $2 and so on

$HOME is an environment variable that is exported by /etc/profile during startup ... for other (non-root) systems it would be /home/user

to see a complete list of environment variables enter this at a prompt:
env

the "$" just means it is a variable

others:
$# is the number of parameters passed to the script
$! is the pid of the last command
(there are a bunch of useful variables)

[ -d something ] returns true if something is a directory
the ! means not - so it returns true only if it is not a directory
the && afterward only executes if the preceding returns true

OK thanks. I need a little time to digest and experiment with this.

Posted: **Mon 10 Jan 2011, 21:43**

technosaurus wrote:name this script as "trash" and put it in or make a symlink in the sendto (or "open with") directory
Code: Select all
#!/bin/sh
[ ! -d $HOME/Trash ] && mkdir $HOME/Trash
mv $@ $HOME/Trash
(It doesn't remember where they came from though for "undelete")

Interesting.
May I ask what the purpose of && is?

Posted: **Mon 10 Jan 2011, 21:48**

As far as I understand it, if you execute set in a terminal, you will find in the list of system variables

Code: Select all

HOME=/root

If you want to use that variable in a script it is to be preceded by $

Posted: **Mon 10 Jan 2011, 22:10**

Béèm wrote:May I ask what the purpose of && is?

it is just a shortened if-then

[ <something2check> ] && do_a || do_b
if <something2check> evaluates as true then do_a else do_b

the great part is that it doesn't need to be a comparison like <, >, -lt, -gt, ==, !, -n, -x ... it can be a "`command`" (if the command completes "succesfully" it evaluates as true - user selects ok instead of cancel or closing a dialog for example)

btw set works differently with different shells and can have parameters like -a ... export HOME=/notroot should sufficiently break anything that is looking for the real home (also a common shortcut for $HOME is ~ )

Posted: **Mon 10 Jan 2011, 22:13**

Hmmm... this is becoming a valuable thread. Bookmarked.

Posted: **Mon 10 Jan 2011, 22:32**

We kinda got off of the original topic, but still usefull for implementing it I guess - more bash scripting techniques are available here:
http://tldp.org/LDP/abs/html/

but is significantly enhanced if you can master sed and awk
http://www.grymoire.com/Unix/Sed.html
http://www.grymoire.com/Unix/Awk.html

and a basic user interface with Xdialog: (not great but most distros at least have it installed by default)
http://xdialog.free.fr/doc/index.html

Posted: **Mon 10 Jan 2011, 23:17**

Thank you Technosaurus.
I saw the difference between set and env.
Bookmarked also.
Specially the part to test if a directory exist is of interest as I have been trying code, which never worked and in fact it's simple.

Posted: **Mon 10 Jan 2011, 23:26**

does `mv $@` also works with spaces in the filename

and wouid `mv "$@"` also work ?

Posted: **Tue 11 Jan 2011, 01:13**

Putting a symlink to your "Trash" script in ~/.config/rox.sourceforge.net/OpenWith will result in the Trash item showing up in the Open With... item whenever you right click in Rox-filer. You can instead make the Trash script show up at the top of the main Rox-filer right click menu by selecting the Customize Menu... from the Rox-filer menu that pops up when an item is right clicked. The SendTo directory that pops up is symlinked to the OpenWith directory. Create a symlink in this way for each type of file you want to be able to move to the trash bin. See the rox manual in Puppy for more information.
BS

Posted: **Tue 11 Jan 2011, 02:20**

Karl Godt wrote:does `mv $@` also works with spaces in the filename

and wouid `mv "$@"` also work ?

Try it and see - $@ should work with dragged files but not with command line entry unless you enclose spaced files with quotes -- I have a snippet that replaces spaces though

Code: Select all

#!/bin/sh
[ $1 ] && cd $1
for x in *;do
y=`echo $x |sed "s/ /_/g"`;
[ "$x" != "$y" ] && mv "$x" "$y" && [ -d "$y" ] && $0 $y || [ -d "$x" ] && $0 $x;
done

explanation:
if you entered a directory as input change to that directory
for all files/directories in the current directory do
set up a variable to compare to x try to replace space with underscore using sed
if the variables don't match then must have had a spaces so rename (move) that file to the string with underscores
if the current y or x is a directory run this script in that directory too (this is recursion)
done

$0 refers to the script itself so you can call it recursively as above regardless if it is in $PATH or what it is named ... you can make a self destructing script like:
rm -f $0

Posted: **Tue 11 Jan 2011, 16:37**

just to add something that already exists is easy
as explained with symlinks

---------------------------------------------------------------------

*but if you truly want to add a new app to rox that you made its more complex and more code to take care of all of the steps needed

this not only automates it for you it shows you step by step how its done

here is a script you could easily modify to build any right click app
It already works for the trash as is so you have a working example to start with

how to
unzip these two files to root
/root/dnd_trash
/root/setup-global-trash

then just a one time set up needed click on this file and you are done you never have to do that part again
root/setup-global-trash

it uses the trash bin
and a new app dir was created
and a bonus dragNdrop selected files are move to trash

you get a prompt if you want to move the file as a safety

this is how I auto build app directories when I need one

Joe

(old)Puppy Linux Discussion Forum

How to add an option to ROX' right-click menu?

How to add an option to ROX' right-click menu?