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Topic: My wallpaper changing script!!!!!!, A handy little script

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King_moo

Group: Members
Posts: 2
Joined: July 2005

Posted: July 24 2005,03:24

I made this script to make it more easy to change the wallpaper.

You cant get it HERE

to use it just cd to the one its in and type ./bg-script

-King_moo

SaidinUnleashed Offline

Group: Members
Posts: 1428
Joined: Mar. 2004

Posted: July 24 2005,06:30

here is the text of the script, for whrn geocities dies on him.

Code Sample

#!/bin/sh
#script by Zak Tarbet
clear
echo "=========================="
echo "= DSL bg changing script ="
echo "==========1.0============="
echo
echo "========"
echo "= Menu ="
echo "==================="
echo "= 1- Specify file ="
echo "= 2- Quit ="
echo "==================="
read slct
if [ "$slct" = "1" ]; then
echo "What is the bg location? (i.e. /home/dsl/Wallpaper/myfile.jpg)"
read paper2
bsetbg -f $paper2
fi
if [ "$slct" = "2" ]; then
bash
fi

--------------
They say if you play a Microsoft CD backwards, you hear satanic messages. That's nothing, cause if you play it forwards, it installs Windows.

Unleash the power of the TILDE~~~

mikshaw

Group: Members
Posts: 4856
Joined: July 2004

Posted: July 24 2005,18:38

s'ok for suggestions? I wish more people would criticize my scripts

You have a lot of extra bytes that aren't needed. Rather than putting an echo command on every line, you could do one echo, adding linebreaks within the quotes:
echo "==========================
= DSL bg changing script =
==========1.0=============

========
= Menu =
===================
= 1- Specify file =
= 2- Quit =
==================="

Another way is by using cat instead of echo:
cat << EOF
==========================
= DSL bg changing script =
==========1.0=============

========
= Menu =
===================
= 1- Specify file =
= 2- Quit =
===================
EOF

Second, the check for '2' isn't really necessary. You could do something like this to save some bytes:
if [ "$slct" = "1" ]; then
echo "What is the bg location? (i.e. /home/dsl/Wallpaper/myfile.jpg)"
read paper2
bsetbg -f $paper2
else bash
fi

But for multiple choice input, I've always preferred case:
case $slct in
1) echo "What is the bg location? (i.e. /home/dsl/Wallpaper/myfile.jpg)"
read paper2
bsetbg -f $paper2;;
*) bash;;
esac

One more thing...
If you launch bash from a shell, you are starting a second shell. This is no problem if you start a script in an x shell and want to keep the window open after you choose "2", but if you are already in a shell and you start the script directly, you'll end up in a second shell. Not a big deal, but personally i'd find it annoying to have to exit twice to leave the original shell.

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

King_moo

Group: Members
Posts: 2
Joined: July 2005

Posted: July 24 2005,19:35

Thanks for the advise, I only really started trying to program in linux. I made the unfortunate mistake of learning four Windows programming languages, none of wich are portable. Now I cant stand Windows and trying my hand in linux. So I still have lots to learn.

SaidinUnleashed Offline

Group: Members
Posts: 1428
Joined: Mar. 2004

Posted: July 24 2005,20:09

If you are wanting easily portable code, learn a standard language, like C or C++.

Python, perl, and lua are well known interpreted languages, and would be good to know too.

--------------
They say if you play a Microsoft CD backwards, you hear satanic messages. That's nothing, cause if you play it forwards, it installs Windows.

Unleash the power of the TILDE~~~

4 replies since July 24 2005,03:24

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Damn Small Linux Board » Damn Small Linux » DSL Ideas and Suggestions » My wallpaper changing script!!!!!!