One more $.

I want to print the design capacity of the battery.

This is not working.

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"Not working" is not helpful.

Whenever you ask a question, you should answer three things:

1) What are you doing/running. In this case you covered that with:
2) What is the expected output. You also answered that (sort of):
3) What is the actual output. This is the part you keep missing.



In other words, what is the command/script/program doing that you do not want, and/or what is the command/script/program not doing that you do want. Is the command outputting the wrong thing? Anything? Error messages?

Often the solution comes from simply asking one more question, why? Why am I running what I'm running? Why do I expect that output? And most importantly, why is it giving me the result that it is? I can't even count the number of times I've run into some wacky problem, started typing up a thread on LQ, and as I'm answering those questions, I find the solution myself before I even hit Submit.

Output of script.
I do my best, but I am not perfect.

We all makes mistakes.

Is there a way for my script to output the file name of the script that I invoked to that same file?

For ex:

Invoked by test.sh
01/13/16 07:47:37 PM
/proc/acpi/battery/BAT0/state:remaining capacity: 5387 mAh

# $0 shows the script that has been invoked
# echo $0 >> date.txt

I am using Tahr Pup 6.0.5.

I can not figure out why this line 'grep design /proc/acpi/battery/*/capacity >> Battery_State.txt '
does not send the design capacity to the text file.

Can someone help me ?

See my earlier post on this question. You need to tell us what it DOES do, not just that it doesn't work. Have you actually looked inside /proc/acpi/battery/*/capacity to see if there are any lines that contain the word "design"?

This is the file it produces.
My previous post with the screenshot shows what shows on my screen when I click on the battery icon.

The proc statements were found on the internet and I do not understand how they work.

I can only post what I know and not what I do not understand.

Have you used my script and seen what it does ?

grep is a text searching tool. It searches the file you tell it for the word you tell it, and prints out any lines that match.

will search for the word "design" in a file called "capacity" that's located in /proc/acpi/battery/*/ (the * matches any directory in that location).

Your system either doesn't have a file called capacity in that location, or that file does not contain the word "design". If you want to fix it, you'll need to see what is actually in that file so you can search for the right phrase.

I can't run your script as none of my systems have a /proc/acpi/battery directory. Entries in /proc/acpi are VERY system and distribution-specific, nobody here will be able to test your script unless they just happen to be running the exact same Linux distribution as you on the exact same hardware.

Looks like a syntax error.

Should be

Thanks Michaelk.

I misinterpretated info as being a word it was searching for instead of a directory name.

Before you posted, I was up to this.

It's not perfect, but it suits my needs. :-)