Is there a CLI command to run default application against a file?

Example - you have an zingo file so you can enter

the-starter-command abc.zingo

and Zingo abc.zingo gets started - the-starter-command knows about the default application for different file types.

Real example - Libre Office for .doc and .odt files.

https://redd.it/1gjid8x
@r_bash

Archive of wiki.bash-hackers.org
https://github.com/flokoe/bash-hackers-wiki

https://redd.it/1gk3o6p
@r_bash

Color in prompt

I recently moved from powershell to bash and installed starship. My question is how can I make prompt to be not just white text:

https://preview.redd.it/h30nwaem7oxd1.png?width=918&format=png&auto=webp&s=83fe0e408da06de31a3e5d2f1fc6616f81ef45ce

but instead change color like in powershell?

https://preview.redd.it/01x6w2eq7oxd1.png?width=438&format=png&auto=webp&s=057aa79163fab217974bcda86b9af21360ba78b5



https://redd.it/1ger5b3
@r_bash

Issues when customizing LS_COLORS

Hello everyone,

I recently parametered my .bashrc file to customize my ls command colors. But some file types appear in two different colors, when I only put one in my .bashrc. Example with my .md files, which are supposed to be light blue but also appear hot pink :

https://preview.redd.it/71vj5kls6qxd1.png?width=569&format=png&auto=webp&s=c288ee9581663d3bd247184eebbc9a8410f3e667

Here are my parameters in my .bashrc :
`LS_COLORS="di=1;38;5;218:*.sh=1;38;5;213:*.tar=1;38;5;205:*.zip=1;38;5;205:*.gz=1;38;5;205:*.bz2=1;38;5;205:ln=1;38;5;218:*.docx=1;38;5;174:*.doc=1;38;5;174:*.pdf=1;38;5;174:*.jpg=1;38;5;174:*.png=1;38;5;174:*.jpeg=1;38;5;174:ex=1;38;5;198:*.md=1;38;5;153"`

I did not modify anything else in any other file. Is there anything I'm missing? How can I make my files the right color?

https://redd.it/1geziuf
@r_bash

Useful Shell Functions for Developers
https://2kabhishek.github.io/blog/useful-shell-functions/

https://redd.it/1gi078n
@r_bash

Pass delimited string variable-array directly into for loop?

I successfully followed instructions at this StackOverflow post to convert a string variable, var="a,b,c" to a 3 element array ignoring the commas:
arrIN=(${IN//,/ })

for i in "${arrIN@}"; do
echo "$i";
done

I would like to place command right after i in:
Neither of the following worked:

for i in "${(${IN//,/ })@}"; do
echo "$i";
done
Error: bash: ${(${IN//,/ })@}: bad substitution

Same error when I removed the the parentheses, ( ).

https://redd.it/1gh9ui8
@r_bash

Idea's needed

I was mildly annoyed at the one line update noscript for ubuntu. So I created a wonderfully bloated monstrosity of a bash noscript to accomplish the updates and some other stuff. I wish to bloat this thing further with more functionality. Any ideas would be appreciated.

https://github.com/ageorge224/Update-Script

https://redd.it/1gkkkee
@r_bash

Bash grep

I've tried numerous rules, but I can't seem to figure out the correct pattern.

I have numerous words in a file

abcd:1234:ef35
f24a:5fa3
ab12:34fa:cd42

I'm trying to write a grep that if a word contains more than 1 colon, the entire word is returned.

The issue is that the strings may be in a list, or they may be side-by-side, only separated by a space

abcd:1234:ef35 f24a:5fa3 ab12:34fa:cd42

I can't seem to pull the whole word, it always returns a single character.

https://redd.it/1gklxut
@r_bash

Who else has something like this in their .rc?

straight to prod \(\/s\)

https://redd.it/1gkahoz
@r_bash

Temporarily change terminal 16 color palette in a noscript?

What's the specific term to call/describe the 16 colors that's always being used by the terminal? (neofetch colored squares, etc.)

And is there a way to dynamically change them through a noscript?

Searching for solutions, not sure if the command I need is tput or dircolors or something else.

Why do I want to do this? One utility I'm using will only use the set of 16 colors used by the terminal. I'm looking for a workaround so that I can force it to use colors I specify (from the 256 color set) without changing the defaults of my terminal.

https://redd.it/1gh3xf1
@r_bash

Trying to understand why my search returns no results

Hi all,

Let me preface this by saying this is day one of my noscripting journey. I'll also add that I am using ChatGPT to try to cheat the hell out of it!

With that said, here is my problem. I am going step by step through the process of converting a PDF to text, parsing the text for info and then saving that info into a csv file.

I am on OSX so I started by using Shortcuts to "Get text from PDF" which i initially outputted to a text file; it worked fine. I then added a noscript (generated by ChatGPT) to search the clipboard (I changed the Shortcuts output to the clipboard) for the line "Grand Total" and output the line below (which had the amount) to a csv file. However the noscript can't find the line "Grand Total". Ive tried this initially with Applenoscript and now with a shell noscript, neither work.

Here is the code I'm using:

#!/bin/bash

echo "pbpaste version: $(pbpaste)"

# Get the clipboard contents
input_text=$(pbpaste)

# Convert the clipboard text into an array of lines
mapfile -t lines <<< "$input_text"

# Initialize variables
grand_total_found=false
grand_total_value=""

# Loop through each line
for ((i = 0; i < ${#lines[@]}; i++)); do
# Normalize the line by trimming spaces and converting to lowercase
current_line=$(echo "${lines[i]}" | sed 's/^[ \t]*//;s/[ \t]*$//' | tr '[:upper:]' '[:lower:]')

# Check if line contains "grand total" (case-insensitive)
if [[ "$current_line" == *"grand total"* ]]; then
# Get the next line for the total amount and trim whitespace
grand_total_value=$(echo "${lines[i+1]}" | sed 's/^[ \t]*//;s/[ \t]*$//')
grand_total_found=true
break
fi
done

# Check if "Grand Total" was found
if [ "$grand_total_found" = true ]; then
# Prompt for output file location
echo "Enter the path to save the CSV file (e.g., /path/to/output.csv):"
read -r output_file

# Write "Grand Total" and value to the CSV file
echo "Grand Total,$grand_total_value" > "$output_file"
echo "Grand Total saved to CSV successfully at $output_file"
else
echo "No 'Grand Total' found in the clipboard text."
fi


And here is the output from that currrently:

> pbpaste version: Remittance Statement
>
> 1.00
>
> To:
>
> REDACTED
>
> Date: 31/10/2024
>
> Ref: TR16246
>
> (Property) REDACTED
>
> Date Main Tenant Denoscription VAT
>
> Charge
>
> (inc VAT)
>
> Payment
>
> (inc VAT)
>
> 29/11/2022 Not Applicable 392208 7,850.29
>
> 0.00
>
> 7,850.29
>
> 0.00
>
> Grand Total
>
> 7,850.29
>
> REDACTED
>
> E-mail: REDACTED
>
> VAT No: REDACTED
>
> Page 1 of 2
>
> Income and Expenditure
>
> Type VAT
>
> Charges
>
> (inc VAT)
>
> c000- Contractor Charge 7,850.29
>
> Payments
>
> (inc VAT)
>
> Totals
>
> 7,850.29
>
> Total Remitted 7,850.29
>
> REDACTED
>
> Page 2 of 2
>
> No 'Grand Total' found in the clipboard text.


I added the echo just to review the text it was taking from the clipboard was correct.

Any help at this basic stage much appreciated as this is going to get more complicated (I'll eventually need to output multiple lines). Also, what are the best places to look for documentation onn this sort of stuff?

Thanks all.

https://redd.it/1gghmnl
@r_bash

Simple bash noscript help

Looking to create a very simple noscript to start a few services at once just for ease. My issue is it only wants to run one or the other. I'm assuming because they're both trying to run in the same shell? Right now I just have

cd ~/path/to/file &
./run.sh &
sudo npm run dev

As it sits, it just starts up the npm server. If I delete that line, it runs the initial bash noscript fine. How do I make it run the first noscript, then open a new shell and start the npm server?

https://redd.it/1gl3ox2
@r_bash

Learning more practical automation

Can anyone point me to where I can learn more real world noscripting. More so applying updates to things or monitoring system health, so far all of the “courses” don’t really help more than understanding simple concepts.

https://redd.it/1gm1gfm
@r_bash

ImageMagick6: ¿how change save 75 compr.(default) to 95 compr.?

Hi, this ask is about ImageMagic 6: Do you know how I change the compression for save by default is 75 and I'd like to set compression 95 (so change 75 for 95 by default).

Thank you and Regards!

https://redd.it/1gm5myp
@r_bash

When a process is killed because it exhausted free memory, I'd prefer bash says "Killed: out of memory" instead of just "Killed"

I see in siglist.c the internationalized string:

sys_siglist[SIGKILL] = _("Killed");

But I'm wondering if we can use anything that the kernel does around https://github.com/torvalds/linux/blob/master/mm/oom_kill.c#L947 to tell the user that the reason was low memory?

https://redd.it/1gmfdxb
@r_bash

Looking for some guidance on how to tackle this problem with bash. Had a few ideas that I think can work but would like more experienced opinions.

Hello! For context to the noscript, I'm trying to make a bash noscript(s) that use the ncat util from nmap to capture data being streamed by a phone server, that part I've been able to accomplish no problem. I'm running into an issue when trying to take that data capture and output it to unique daily files, and having those files have only the output for that specific day.

The issues i've ran into are:

* if I move the file where ncat is being redirected to, it keeps appending to that same file even after renaming
* if I try to have the noscript running ncat change the file name to make new output file every day, no dice.
* using a cron job worked to an extent, in that scenario the ncat command was still putting everything in 1 big file and that was what was copied daily.

How would you approach something like this??

I've changed my noscripts around a lot and the concepts are pretty simple so I haven't pasted my code here in the post, but if you'd like to see some of it by all means just ask :)


One thought I had was to make the noscript running ncat in a way where it can be called by a cron job, the only issue I can see there is making sure the ncat process stops after the day's over.

https://redd.it/1gmlz4b
@r_bash

What terminal app do you use on your Linux distro

Hello everyone,

I am a Mac user, and there is a long time I don't use a Linux distribution. My terminal app is iTerm2. What is the best replacement for iTerm on Linux distro, such as, Ubuntu/Fedora/Alpine ?

My requirements are 256xterm colors and font change ability.
Thanks.

https://redd.it/1gmmjcr
@r_bash

Article about Bash Strict Mode

I write an article about Bash Strict Mode.

I would love to hear your feedback:

https://github.com/guettli/bash-strict-mode

https://redd.it/1gmufop
@r_bash

Filter video files by codec?

How to list and sort/move video files by codec?

Ideally just move all have/x265 files into a subfolder kinda thing.

I've just grabbed mediainfo and am prodding at but don't really know what I'm doing....I suspect with a little bash and some knowledge it should make this simple.

https://redd.it/1gmtgfb
@r_bash

GitHub - helpermethod/up: Climbing the directory tree at the speed of thought.
https://github.com/helpermethod/up

https://redd.it/1gn7r6e
@r_bash

Bash noscript to simplify finding Flatpaks via the command line
https://github.com/TDGalea/flatpak-finder

https://redd.it/1gnahqc
@r_bash