Linux

48338 readers

730 users here now

From Wikipedia, the free encyclopedia

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

Rules

Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
No misinformation
No NSFW content
No hate speech, bigotry, etc

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago

MODERATORS

AgreeableLandscape@lemmy.ml

nooter692@lemmy.ml

MarcellusDrum@lemmy.ml

cypherpunks@lemmy.ml

cyclohexane@lemmy.ml

d3Xt3r@lemmy.nz

Use YAD/Zenity dialogues to populated variables in a bash script? (discuss.tchncs.de)

submitted 10 months ago* (last edited 10 months ago) by linuxPIPEpower@discuss.tchncs.de to c/linux@lemmy.ml

8 comments fedilink hide all child comments

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.

you are viewing a single comment's thread
view the rest of the comments

[–] linuxPIPEpower@discuss.tchncs.de 1 points 10 months ago

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.