I am learning some bash scripting.
I am interested to learn about getting input for my scripts via a GUI interface. It seems that yad (forked from zenity) is the most robust tool for this. (But if there is a better choice I would like to hear about it too.)
Is it possible to obtain 2 or more named variables using yad? Not just getting the values based on their positions ($1, $2, etc), with awk. See “What doesn’t work” spoiler for those.
What doesn't work
I find how to obtain one named variable, for example:
inputStr=$(zenity --entry --title="My Title" --text="My Text:")
I also find solutions relying on opening single-variable dialogues sequentially but that’s a terrible interface.
Everything else relies on chopping up the output with awk or based on the positions, $1, $2, $3 etc. In this script $jpgfile is obtained:
jpgfile=$(echo $OUTPUT | awk 'BEGIN {FS="," } { print $1 }')
This seems unmanageable because adding a new field or failing to provide input for a field will both change the output order of every subsequent value. It’s way too fragile.
For a simple example, I want to ask the user for a file name and some content. Creating the dialogue is like this:
yad --title "Create a file" --form --field="File name" --field="Content"
If you fill both fields the output in the terminal is file|this is some text|. How do I get them into variables like $filename and $filecontent? So then I can finish the script like this:
touch "$filename"
echo "$filecontent" > $filename
Is this possible??? I do not find it anywhere. I looked though all kinds of websites like YAD Guide, yad man page, smokey01. Maybe I missed something. On yaddemo I read about bash arrays and it seemed to come close but I couldn’t quite piece it together.
Try something like
IFS='|' read f1 f2 < <(zenity <...>)where f1, f2 etc. are variable names.If you leave some of the field blank will it be able to skip assigning the respective variable? That’s one problem with the positional values.