CODEWITHSUNDEEP
bashshellnotificationsubuntu-16.04notify-send
node_man
node_man

Reputation: 1449

notify-send command issue in shell script

I have a text file b.txt with the following text:

notify-send -i gtk-info "How Are You" -h string:x-canonical-private-synchronous:anything

I have a shell script with the following code:

#!/bin/sh

while true;
do if [ -s b.txt ]
then
value="$(cat b.txt)"
exec $value
sleep 0.1
fi
done

When I run the script it throws the following error and notification is not displayed:

Invalid number of options.

But when the text file contains the command with just two words like this:

notify-send -i gtk-info "Hows You" -h string:x-canonical-private-synchronous:anything

the notification is displayed perfectly.

This issue is happening only when I execute notify-send through a shell script. How do I display a notification with a message having any number of words?

Upvotes: 0

Views: 1248

Answers (2)

nullPointer
nullPointer

Reputation: 4574

Try replacing exec $value with eval $value

Upvotes: 1

tripleee
tripleee

Reputation: 189937

exec is entirely the wrong thing to use here. Maybe try

#!/bin/sh

while true;
do
  if [ -s ./b.txt ]
  then
    . ./b.txt
    sleep 0.1
  fi
done

But running this in a tight loop seems like an odd thing to want to do, and executing a file of unknown provenance is dubious at best. Are you sure this text file will always contain exactly the contents you expect and cannot be modified by anyone? Why is this command being put in a separate file in the first place?

Upvotes: 2

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